Question

why Cp higher for mono atomic gas​

Answer 1

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So Cp is greater than Cv and the difference is due to the work involved in changing the volume. At constant volume no external work is done, hence all heat provided to system is used to raise the internal energy of the system.

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ADDITIONAL INFORMATION OF CP CONSTANT FOR IDEAL GAS...

This last equation, although it was derived by considering a constant-volume process, is valid for any process involving an ideal gas. ... From the ideal gas law, pV = RT (n= 1), p dV + V dp = R dT and we have that R = Cp - Cp .

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Answer 2

Explanation:

cp is greater than cv is due to change in the volume.