Questions
Certain amount of an ideal gas are contained in a closed vessel. The vessel is moving with a constant velocity v. The molecular mass of gas is M. The rise in temperature of the gas when the vessel is suddenly stopped is
detailed solution
Correct option is B
If m is the total mass of the gas then its kinetic energy =12mv2When the vessel is suddenly stopped then total kinetic energy will increase the temperature of the gas. Hence 12mv2=μCvΔT=mMCvΔT [As Cv=Rγ−1⇒mMRγ−1ΔT=12mv2⇒ΔT=Mv2(γ−1)2RTalk to our academic expert!
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The temperature of 5 mol of a gas which was held at constant volume was changed from 100oC to 120oC. The change in internal energy was found to be 80 J. The total heat capacity of the gas at constant volume will be equal to
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