4.8 × 10^9 M is the concentration of n2 gas at equilibrium when the concentration of no2 is twice the concentration of o2 gas.
In some gas-producing fields, such as those in the US Midwest, North Sea, Eastern Europe, and South East Asia, nitrogen (N2) may naturally present in significant concentrations. Around 15% of the world's non-associated gas deposits have nitrogen content levels that are too high to be considered pipeline-quality gas (usually 3–4 mol%). Because it is an inert gas, nitrogen cannot support burning. Consequently, unstable combustion could result from burning a gas that contains too much nitrogen. The recovery of NGL content will be lowered when high nitrogen gas is treated in a gas plant because nitrogen acts as stripping gas. The compression technology and size of the transmission pipeline will rise with increased nitrogen concentration. High nitrogen levels are undesirable in an LNG plant because they lower the LNG temperature, which increases the energy required to liquefy natural gas and also increases the amount of boil-off gas from the LNG storage tanks.
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find the relative molecular mass of MgCo3
The molecular mass of MgCO3 is 84.313 grams/mol.
How Does The molecular Mass Calculator Work?The standard atomic weights for that element are listed in a table, and each atom is compared to those values. The molar mass calculator displays the findings in a table at the bottom that includes the number of atoms, the atomic weights of the constituent elements, and the molecule's molecular weight. It provides a solution for a molecular formula's overall mass.From there, we dissect the components of the formula for magnesium carbonate: an atom of magnesium, an atom of carbon, an atom of oxygen, etc.You will need to unpack any bracketed expressions because (yet) we don't have brackets implemented. They have no impact on weight in any case. Multiply each element by how many times the structure in brackets appears. For instance: C6H5-3PCCO becomes C18H15-3PCCO.The relative molecular mass of MgCo3
Symbol Mg C O
Atoms 1 1 3
Name Magnesium Carbon Oxygen
Atomic 12 6 8
Molar Mass 24.305 12.011 15.999
Total 24.305 12.011 47.997=84.313
The molecular mass of MgCO3 is 84.313 grams/mol.
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A sample 0. 100 moles of a gas is collected at at stp. What is the volume of the gas in liters?
A sample 0. 100 moles of a gas is collected at at STP . 2.24 is the volume of the gas in liters.
The STP means standard temperature and pressure.
At STP,
Temperature = 0 °C =273 K
Pressure = 1 atm
We get value of volume by using ideal gas equation,
PV = nRT
P is the pressure of the gas = 1 atmV is the volume occupied by the gas = ?n is the number of the moles = 1 moleT is the temperature of the gas = 273 K or 0 °CR universal gas constant = 8.31 J/ mole × KCalculation,
Since, one mole of a gas occupy 22.4 L volume at STP
So, for 0.1 mole volume occupy = 22.4L × 0.1 mole/1 mole = 2.24L
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How many protons, neutrons and electrons, in that order are present in the anion formed by one atom of 79se? group of answer choices 34, 34, 45 34, 45, 34 32, 45, 34 34, 45, 36 36, 45, 36
There are 34 protons , 45 neutrons and 36 electrons, in that order are present in the anion formed by one atom of 79Se .
Calculation
The number of electron / protons ( present in the nucleus ) of the atom is equal to atomic number .
The sum of number of electron / protons ( present in the nucleus ) and neutrons ( present in the nucleus ) of the atom is called atomic mass.
The atomic number of Se = 34
The Mass number or atomic mass of Se = 79
The anion of Se = [tex]Se^{-2}[/tex]
It means two electron loss by Se and form [tex]Se^{-2}[/tex] .
So , the difference between number of electrons and protons = 2
Hence , number of electron and proton in [tex]Se^{-2}[/tex] anion is 34 ( two less than number of protons ) and 36
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An overpack containing four one-liter metal cans of NA1993, Compounds, cleaning liquid, a Class 3 (Flammable liquid), PG III, being offered for transportation by highway, may qualify for _______________
An overpack containing four one-liter metal cans of NA1993, Compounds, cleaning liquid, a Class 3 (Flammable liquid), PG III, being offered for transportation by highway, may qualify for specification packaging. This is further explained below.
What is specification packaging?Generally, The term "specification packaging" refers to a package that meets one of the packaging specifications or standards listed in this subchapter's parts 178 or 179.
In conclusion, It's possible that an overpack that contains four metal cans of one liter each filled with NA1993, Compounds, cleaning liquid, a Class 3 (Flammable liquid), PG III, and that's being provided for transportation on the highway might qualify as specified packing.
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Which of the first 20 elements in a Periodic table has atoms with the greatest mass?
The ratios aren't matching, how do I find correct ratios?
overall equation is ,
2FeSo4+heat→Fe203+SO2+SO3
What is Decomposition Reaction ?Decomposition reaction is when Reactant break down into simpler parts .
For decomposition reactions require energy input. The decomposition reaction happens in our everday life. The process of digestion food is a type of decomposition ,where breakdown of food from larger to smaller particles and large amount of energy release.
The decomposition is classified into
*thermolysis
*Electrolysis
*photolysis
The overall equation will be
2FeSo4+heat→Fe2O3+SO3+So2
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A molecular orbital that decreases the electron density between two nuclei is said to be ____.
a. nonpolar
b. antibonding
c. pi-bonding
d. hybridized
e. bonding
A molecular orbital that decreases the electron density between two nuclei is said to be antibonding.
The bonding orbital, which would be more stable and encourages the bonding of the two H atoms into [tex]H_{2}[/tex], is the orbital that is located in a less energetic state than just the electron shells of the separate atoms. The antibonding orbital, which has higher energy but is less stable, resists bonding when it is occupied.
An asterisk (sigma*) is placed next to the corresponding kind of molecular orbital to indicate an antibonding orbital. The antibonding orbital known as * would be connected to sigma orbitals, as well as antibonding pi orbitals are known as [tex]\pi[/tex]* orbitals.
Therefore, molecular orbital that decreases the electron density between two nuclei is said to be antibonding.
Hence, the correct answer will be option (b)
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Please help,
How could you tell a Ca(NO3)2 solution from a Zn(NO3)2 solution?
Answer:
you better give me brainliest
Explanation:
Zinc nitrate and calcium nitrate solution can be distinguished by reaction with ammonium hydroxide. Zinc forms a white gelatinous ppt. whereas there is no precipitation of calcium hydroxide even with excess of ammonium hydroxide
What is the change in enthalpy at 25°c and 1 atm for the production of 3. 00 mol sn(s)? sn(s) sno2(s) → 2sno(s); δh° = 16. 2 kj
The addition of the product of volume and pressure along with internal energy is called enthalpy. The change in the enthalpy at 1 atm is 24.3 kJ. Thus, option d is correct.
What is enthalpy?Enthalpy is the measurement of the heat or the energy present in a system that has a constant pressure in the thermodynamic system.
The balanced equation is shown as,
Sn (s) + SnO₂ (s) → 2SnO (s) , ΔH° = 16.2 kJ
The enthalpy change for the reaction is for 2 moles of Tin(II) oxide. So, for 3 moles of Tin(II) oxide produced in the reaction the enthalpy change will be given as,
= (16.2 kJ × 3 mol) ÷ 2 mol
= 24.3 kJ
Therefore, option d. 24.3 kJ is the enthalpy change.
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Your question is incomplete, but most probably your full question was, What Is The Change In Enthalpy At 25°C And 1 Atm For The Production Of 3.00 Mol SnO(S)? Sn (s) + SnO₂ (s) → 2SnO (s) , ΔH° = 16.2 kJ.
-24.3 kJ-16.2 kJ16.2 kJ24.3 kJ5.4 kJDraw the major organic product(s) of the reaction of p-bromoaniline with ch3i (excess)
The major product is p-bromo N,N,N -trimethylaniliniumiodide when p-bromoaniline react with excess CH₃I.
When p-bromoaniline react with methyl iodide it produces p-bromo N,N-dimethylaniline.
What happens when p-bromo N,N-dimethylaniline. reacts with excess methyl iodide ?When p-bromo N,N-dimethylaniline reacts with excess methyl iodide leading to the production of p-bromo N,N,N -trimethylaniliniumiodide.
Thus from the above conclusion we can say that The major product is p-bromo N,N,N -trimethylaniliniumiodide. when p-bromoaniline react with excess CH₃I.
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Why is it important to know if a substance is a molecular compound or an ionic compound before predicting its effect on the boiling and freezing points of a solvent?
It is important to know if a substance is a molecular compound or an ionic compound because the boiling and freezing points of a solvent are colligative properties, and they depend on the solute particles.
What are molecular and ionic compounds?Molecular compounds are pure things called that are created when atoms are joined by the sharing of electrons. Ionic compounds are formed by transferring electrons between the elements.
It is important to know the type of compounds before predicting because the more the solute particles the more the freezing point and lower the boiling points. And it tells how much amount f solute will be fine in the solvent.
Thus, knowing if a material is a molecular or ionic compound is crucial since a solvent's boiling and freezing temperatures are collaborative features that are dependent on the solute particles.
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How many electrons are shared between one nitrogen atom and one carbon atom? two three six seven
the nitrogen and the carbon are sharing six electrons! A single bond is created when two atoms share two electrons. If they share four, their bond is doubled. These two are actually sharing a six, which is a triple bond.
How many electrons does the carbon atom share?By sharing four pairs of electrons through the formation of four covalent bonds, carbon fills its outer energy level and achieves stability.
How many electrons do nitrogen atoms share?Only the nitrogen atoms' valence shells are taken into account while thinking about the bonding in a nitrogen molecule. Eight electrons can fit in total in nitrogen's outer shell. Therefore, the nitrogen atoms share three electrons each in order to produce the most stable structure.
What holds carbon and nitrogen together?One of the most frequent bonds in organic chemistry and biochemistry is the covalent bond between carbon and nitrogen. With five valence electrons, nitrogen is trivalent in simple amines, with the two extra electrons forming a lone pair.
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The elements of group IA have been termed alkali metals because of their ___ alkaline.
The elements of group IA have been termed alkali metals because of their oxides and hydroxides form alkaline.
What is an element?An element can be defined as a substance which cannot be split into simpler units by ordinary chemical process
Below are some examples of elements:
HydrogenHeliumLithiumBerylliumBoronCarbonNitrogenOxygenFluorineNeonAlkali metals refers to any of the soft, light, reactive metals of Group 1 of the periodic table.
Periodic table refers to a tabular chart of the chemical elements according to their atomic numbers so that elements with similar properties are in the same column.
So therefore, the elements of group IA have been termed alkali metals because of their oxides and hydroxides form alkaline.
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How many milliliters of 0. 0140 m na2s2o3 solution are needed to dissolve 0. 590 g of agbr? agbr(s) 2na2s2o3(aq)→na3ag(s2o3)2(aq) nabr(aq)
The molarity of the solution can be used to give the moles and the volume of the solution. The 0.0140 M sodium thiosulfate needs 225 ml of volume.
What is molarity?Molarity is the property of the solution that is given by the ratio of the moles of the solute to the volume of the solution in liters.
Given,
Molarity of Sodium thiosulfate = 0.0140 M
Mass of solute (AgBr) = 0.590 gm
Molar mass of AgBr = 187.77 g/mol
First moles from the mass can be calculated as,
Moles = mass ÷ molar mass
n = 0.590 g ÷ 187.77 g/mol
= 0.00314 moles
Now, the volume of the solution from molarity is calculated as,
Volume = moles ÷ molarity
= 0.00314 moles ÷ 0.0140
= 0.225 L
Therefore, 225 mL is the volume required.
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What kind of intermolecular forces act between a water molecule and a chloride anion?
The intermolecular forces are present between the molecules and allow their interactions. The ion-dipole force is present between the water and the chloride ion.
What is ion-dipole intermolecular force?Ion-dipole intermolecular forces are present when the molecules have an ion and a neutral molecule that can interlink through an electrostatic attraction. These forces are present in solutions.
The chloride ions have a negative charge, whereas the water molecule has a neutral charge. Water is a polar molecule that has a partial negative and positive charge that can bond with the anion (chloride ion).
Therefore, the water and the chloride ions have ion-dipole intermolecular forces.
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Project 1 Hypothesis Construction
Write a properly formatted hypothesis statement to answer this question: How does the amount of salt added to ice affect the rate at which the ice will melt?
Specify how you plan to change the independent variable by using terms such as increase or decrease. Also, specify how the dependent variable will change in response by using terms such as increase, decrease, or stays the same.
Criteria pts
Correct placement of IV 5
Correct placement of DV 5
If, then format 5
IV indicates either "increases" or "decreases" 5
DV indicates either "increases", "decreases", or "stays the same" 5
The hypothesis should be; "Increasing the amount of ice increases the rate at which the ice will melt"
What is a hypothesis?The term hypothesis refers to a tentative explanation that could be applied in order to explain an observation. When we give a hypothesis, it must be subjected to rigorous experimentation thus it can be confirmed or repelled by experiment.
Now, we can see that the question here is; "How does the amount of salt added to ice affect the rate at which the ice will melt?" This implies that the correct hypothesis here ought to have to do with the impact of the amount of ice in the affirmative.
Thus, the hypothesis should be; "Increasing the amount of ice increases the rate at which the ice will melt"
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Which of the following are considered to be
part of the study of chemistry?
SELECT ALL THAT APPLY
a
properties of matter
b changes to matter
C
interactions between living things
d composition of matter
Chemistry deals with elements and compounds. The properties of matter, changes to matter, and composition of matter are studied in chemistry. Thus, options a, b, and d are correct.
What is chemistry?Chemistry is said to be a scientific field under natural sciences that studies the structure, properties, and composition of matter. It includes atoms, elements, and compounds.
The chemistry includes topics like the properties of matter, including the volume, density, temperature, etc., changes to a matter involving condensation, freezing, vaporization, melting, etc.
The composition of matter including the sub-atomic levels is studied in chemistry. Whereas, the interactions between living things are studied in biology.
Therefore, options a, b, and d. the properties, changes, and composition are studied in chemistry.
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If you reacted 93.7 grams of iron with excess copper sulfate solution, what mass of copper would you expect to make? you may need to balance the equation first. fe cuso4 -> cu feso4
Answer is although the question should have 3 significant figures.
What is significant figures? Chemical equationFe + CuSO4 --> Cu + FeSO4
It is already balanced
Molar ratios1 mol Fe : 1 mol CuSO4 : 1 mol Cu : 1 mol FeSO4
atomic masses of Fe and CuFe: 55.8 g/mol
Cu: 63.5 g/mol
number of moles of Fenumber of moles = mass in grams / atomic mass = 93.7 g / 55.8 g/mol = 1.679 mol
number of moles of Cu:1 mol Fe / 1 mol Cu => 1.679 mol Fe / 1.679 mole Cu
mass of Cu in 1.679 moles Cumass = atomic mass * number of atoms = 63.5 g/mol * 1.679 moles = 106.6 g = 107 rounded to 3 significant figures.
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A 45. 0 l gas cylinder contains 988 g he at 23 °c. what is the pressure inside the cylinder? (r = 0. 08206 l⋅atm/mol⋅k)
a. 10. 4 atm
b. 533 atm
c. 41. 4 atm
d. 133 atm
e. 101 atm
A 45. 0 L gas cylinder contains 988 g He at 23 °C then pressure inside the cylinder is 134.67 atm.
Calculation,
Formula used :The ideal gas equation is given as,
PV = nRT ....(i)
Where , P is pressure of the gas = ?
V = volume of the gas = 45. 0 L
R = universal gas constant = 0. 08206 L⋅atm/mol⋅K
T = Temperature = 23 °C = 23 + 273 = 299 K
n = number of moles = given mass/ molar mass = 988 g/4 = 247 moles
Putting the value of P , V , T , R and n in equation (i) we get
P×45. 0 L = 247 moles× 0. 08206 L⋅atm/mol⋅K×299 K
P = 247 moles× 0. 08206 L⋅atm/mol⋅K×299 K /45. 0 L = 134.67 atm
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a. True or
b. False:
Nadh and Fadh2 donate electrons to the electron transport chain at the same point.
The statement NADH and FADH2 donates electrons to the electron transport chain at the same point is true.
Aerobic cellular respirationThe third stage of aerobic cellular respiration in living cells is oxidative phosphorylation. It involves the electron transport chain and chemiomosis, two separate processes. In order to create a proton pump (gradient) that will be used to fuel ATP production, the electron transport chain includes the transfer of electrons from one molecule to another.The initial electron donors in the electron transport chain are the reduced electron carriers NADH and FADH2, which are created during the Kreb cycle (the second stage of cellular respiration).In this step NADH and FADH2, donates electrons to the electron transport chain at the same time. Hence, with the above details we can conclude that the given statement is true.
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Consider these steps involved in bacterial reproduction.
X: Cell wall and membrane divide and separate.
Y: Genetic material is replicated.
Z: Two independent cells form.
Which list shows the correct order of steps of when a single cell reproduces?
X → Y → Z
Z → X → Y
Y → X → Z
Y → Z → X
The steps in which a bacterial cell reproduces is Y → X → Z Option C
What is reproduction?The term reproduction refers to the process by which new organisms appear. We know that reproduction must involve the fusion of male and female gametes to yield an offspring. The fusion of the male and female gametes can be described by genetics.
Now we know that bacteria are single cell organisms and that they tend to reproduce by cell division or as-exually. This implies that the fusion of gametes do not occur here.
Hence, the correct order for the steps that are involved in the reproduction of bacterial cells are;
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Answer:
C. Y X Z
Explanation:
Why do night bird have extraordinary night vision
Answer:
The low light eye sight depends on the rod cells of the eye,and the birds have more amount of rod cell in their eyes, that's why they have an extraordinary night vision
What would the corresponding
concentration values of OH- be for
the pH values: 1, 3, 5, 7, 9, 11?
The corresponding concentration values of OH⁻ for the pH values
of following are -
1- 10⁻¹
3- 10⁻³
5- 10⁻⁵
7- 10⁻⁷
9- 10⁻⁹
11- 10⁻¹¹
What do you mean by the pH value ?
pH is a logarithmic measure of the hydrogen ion concentration of an aqueous solution pH = -log[H+]
pH describes how acidic or basic an aqueous solution is, where a pH below 7 is acidic and a pH greater than 7 is basic. pH of 7 is considered neutral .
Functions of OH− :
OH− functions as a base .
Hydroxide is a diatomic anion with chemical formula OH−. It consists of an oxygen and hydrogen atom held together by a single covalent bond, and carries a negative electric charge.
Hence, this way pH values of these concentrations are mentioned .
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Lithium metal reacts with nitrogen gas to form lithium nitride. identify the balanced reaction that describes this process
Lithium metal reacts with nitrogen gas to form lithium nitride the balanced chemical equation will be 6Li + N₂ → 2Li₃N.
What is a balanced chemical reaction?In a balanced chemical reaction, the number of moles that are present at the side of the reactant must be always equal to the side of product formation this is known as a balanced chemical equation.
The balanced chemical reaction will be 6Li + N₂ → 2Li₃N.
Here 6 moles of lithium is reacting with one nitrogen but as it is in gaseous state it is N₂ after reacting with lithium it will give two moles
Therefore, balanced equation will be 6Li + N₂ → 2Li₃N
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A 500-ml glass beaker is filled to the brim with ethyl alcohol at a temperature of 5. 00ºc. how much will overflow when its temperature reaches 22. 0ºc?
The volume of ethyl alcohol overflow will be 9.265mL.
To calculate the volume of ethyl alcohol overflow, we will use
∆V=V(á∆T)
Where,
∆V=volume expand
á=volumetric expansion Coefficients =0.00109/°C
V=initial volume =500ml
T'=final temp. =22°C
T=initial temp=5°C
Now,
∆V=500×(0.00109/°C) ×(22-5)
=500×(0.00109) (17)
=9.265ml
Thus, we find that the volume of ethyl alcohol overflow will be 9.265 mL.
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A balloon is filled with 3. 00 l of helium at a pressure of 765 torr. What is the volume of the balloon at an altitude where the pressure is 530 torr if the temperature remains constant?
The volume of the balloon at an altitude where the pressure is 530 torr if the temperature remains constant is 4.33 L
Calculation,
According to Boyle law, the pressure of a given quantity of gas varies inversely with its volume at constant temperature.
[tex]P_{1} V_{1} =k[/tex] .....(i)
[tex]P_{1}[/tex] is initial pressure =765 torr
[tex]V_{1}[/tex] is initial volume = 3L
k is constant
[tex]P_{2} V_{2} =k[/tex] ....(ii)
[tex]P_{2}[/tex] is final pressure = 530 torr
[tex]V_{2}[/tex] is final volume =?
k is constant
Combining equation (i) and (ii). we get,
[tex]P_{1} V_{1} =P_{2} V_{2}[/tex]
765 torr × 3L= [tex]V_{2}[/tex] ×530 torr
[tex]V_{2}[/tex] = 765 torr × 3L/530 torr = 4.33 L
Boyle law used during respiration or breathing.
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What may indicate that the pressure within a container is increasing and that container failure may be imminent?
Answer:
An increase in the intensity of sounds or fire issuing from a relief valve.
What does "contents under pressure" mean?Propane serves as the propellant in all aerosols. R-12, a Freon that was the previous propellant, has been outlawed because it harms the ozone layer above the poles. Propane and R-12 share the same pressure-temperature characteristics.
Propane's boiling point is quite low. It desires a boil-off at ambient temperature. And it continues to do so until the pressure inside a closed container rises to roughly 150 psi (give or take depending on temperature), at which time the boiling point is raised high enough to cause the substance to stop boiling.
"Contents Under Pressure" is exactly what the notice indicates. Paint, hairspray, lubricant, wasp and hornet spray, among other liquids, can be found within an aerosol can, which is a pressure vessel. By inspecting the bottom, you may determine whether a vessel is a pressure vessel. If it is dished in like a bowl, it has the same pressure-holding end as a huge propane tank, with the exception that the curve on the latter has an outward orientation. On aerosol canisters, it is inward because they must sit upright for ease. A circular bottom just cannot accomplish that. But the top resembles an outer hemisphere more or less.
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Eddie
Heat transferred laterally in the atmosphere by horizontal wind movements is a process called?
Answer:
Advection
Explanation:
Advection refers to the process over which heat transferred laterally in the atmosphere by horizontal wind movement.
Click and hold the chemistry book. slide it down so its surface touches the surface of the physics book. then slowly move the chemistry book back and forth to simulate friction. what happens to the speed of the particles of the chemistry book?
The temperature of the chemistry book decreasing as the chemistry book slides across it is the difference when motion is slower.
What is Temperature?
Temperature is a unit used to convey hotness or coolness. It can be stated in terms of any number of arbitrary scales and indicates the direction in which heat energy will naturally flow, i.e., from a hotter body to a cooler body (one at a lower temperature). Temperature is not the same as the energy of a thermodynamic system; for instance, an iceberg has a significantly larger total heat energy than a match, despite the fact that a match is burning at a much higher temperature.
What is relation between motion and temperature ?
When motion is slow , there is an decrease in friction and decrease in thermal(heat) energy which leads to decrease in temperature.
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Answer:
The speed of the particles of the chemistry book increases when the chemistry book slides across the physics book.
Explanation:
edmentum
What is the color of the indicator thymol blue in a solution that has a ph of 11?.
Answer:
Red
Explanation:
Red color is evidenced when thymol blue indicator is in a solution having a pH of 11. A pH of 11 means that the solution is basic or alkaline. Therefore, the indicator turns red, indicating that the solution is alkaline.
When thymol blue indicator is in a acidic solution, the indicator remains blue.