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Cp is always greater than CV for a gas....

`C_p` is always greater than `C_V` for a gas. Which of the following statements provide, partly or wholly, the reason for this ?

A

no work done by a gas at constant volume

B

When a gas absorbs heat at constant pressure, its volume must change

C

for the same change in temperature, the internal energy of a gas changes by a smaller amount at constant volume than at constant change

D

the internal energy of an ideal gas is a function only of its temperature

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The correct Answer is:
A, B
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