One mole of an ideal diatomic gas $\left({\mathrm{C}}_{\mathrm{v}}=5 \mathrm{cal} {\mathrm{K}}^{-1}\right.{\mathrm{mol}}^{-1})$changes its state from state 1 (27° C 1 L) to state 2 (127° C, 10 L). For this process. which of the following is(are) correct?

(Given :$\mathrm{R}=2 \mathrm{cal} {\mathrm{K}}^{-1}{\mathrm{mol}}^{-1}$)