Chemistry, 01.01.2020 00:31 htahir2345

Which gas molecules have the highest average kinetic energy at a given temperature?

a) hbr
b) no2
c) c2h6

Answers: 3

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Answer from: theresamarieuehling2

HBr, NO2, C2H6 all have the highest average kinetic energy at a given temperature.

The average kinetic energy of gases is known to be dependent solely on temperature. Therefore, Since the three are at the same temperature, they will have equal average kinetic energyThe average kinetic energy of gas particles is directly related to the absolute temperature of the gas, and know that all gases at the same temperature have the same average kinetic energy.

Conclusively, we can therefore say that Option A,B, and C are the answers to the statement above.

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Answer from: babbity2009

All the gas molecules have the same average kinetic energy at a given temperature, under ideal gas assumption.

Explanation:

The three molecules, HBr, NO₂, and C₂H₆, such as any other gas molecule, under gas ideal assumption, have the same average kinetic energy at a given temperature.

The temperature is a measure of the kinetic energy of the of the particles (atoms or molecules) of a gas matter.

At a given temperature, all the gases have the same average kinetic energy of all gases.

That does not mean that all the particles have the same kinetic energy. This principle is not valid for individual particles. Different particles of a same (or differfen)t gas will have different speeds and consequently their individual kinetic energy will vary.

This principle is derived from the molecular kinetic theory and the mathematical expression for the kinetic energy in terms of temperature is:

$KE_{avg}=\frac{3}{2}K_BT$

Where:

KE (avg) = average kinetic energyKB = Boltzman constantT = absolute temperature

Answer from: Quest

answer: i would say b.

explanation:

Answer from: Quest

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Which gas molecules have the highest average kinetic energy at a given temperature?

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