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Question
Assertion :An ideal gas is not expected to show any cooling on free expansion. Reason: Ideal gas does not exist but is useful concept.
Assertion :An ideal gas is not expected to show any cooling on free expansion. Reason: Ideal gas does not exist but is useful concept.
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Solution
The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
A gas which obeys the gas laws and the gas equation PV=nRT strictly at all temperatures and pressures is said to be an ideal gas.The molecules of ideal gases are assumed to be volume less points with no attractive forces between one another. But no real gas strictly obeys the gas equation at all temperatures and pressures. Deviations from ideal behavior are observed particularly at high pressures or low temperatures.
So ideal gas doesn't even exists.
According to kinetic theory of gases, ideal gas is not expected to show any cooling on free expansion as there is no attractive force exists between ideal gas molecules.
A gas which obeys the gas laws and the gas equation PV=nRT strictly at all temperatures and pressures is said to be an ideal gas.The molecules of ideal gases are assumed to be volume less points with no attractive forces between one another. But no real gas strictly obeys the gas equation at all temperatures and pressures. Deviations from ideal behavior are observed particularly at high pressures or low temperatures.
So ideal gas doesn't even exists.
According to kinetic theory of gases, ideal gas is not expected to show any cooling on free expansion as there is no attractive force exists between ideal gas molecules.
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