The specific heat of an ideal gas is

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(D) For an ideal gas,the internal energy $U$ is given by:$U = \frac{f}{2} RT$where $f$ is the degree of freedom and $R$ is the universal gas constant.

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Independent of $T$

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(D) For an ideal gas,the internal energy $U$ is given by:$U = \frac{f}{2} RT$where $f$ is the degree of freedom and $R$ is the universal gas constant.Specific heat at constant volume is defined as $C_V = \frac{dU}{dT}$.$C_V = \frac{d}{dT} (\frac{f}{2} RT) = \frac{f}{2} R$.Since $f$ and $R$ are constants for an ideal gas,$C_V$ is independent of temperature $T$.Similarly,$C_P = C_V + R$ is also independent of temperature.Therefore,the specific heat of an ideal gas is independent of $T$.

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