c
Internal energy of a system is the energy possessed by the system due to molecular motion and molecular configuration. 

Internal energy \(u=u_{k}+u_{p}\) 

For an ideal gas there is no molecular attraction \(u_{p}=0\)

\(\therefore\) Internal energy \(\mathrm{u}=\mathrm{u}_{\mathrm{k}}\)

\((i.e.,\, internal\, kinetic\, energy)\)

and \(u=u_{k}=\frac{3}{2} \mu R T\)

At constant pressure \((\Delta \mathrm{Q})_{\mathrm{P}}=\mu \mathrm{C}_{\mathrm{p}} \Delta \mathrm{T}\)

At constant volume \((\Delta \mathrm{Q})_{\mathrm{v}}=\mu \mathrm{C}_{\mathrm{v}} \Delta \mathrm{T}\)

\(\mathrm{AsC}_{\mathrm{P}}>\mathrm{C}_{\mathrm{V}} \quad \therefore \quad(\Delta \mathrm{T})_{\mathrm{P}}<(\Delta \mathrm{T})_{\mathrm{V}}\)