One mole of an ideal gas at 900 K, undergoes two reversible processes, I followed by II, as shown below. If the work done by the gas in the two process are same, the value of In U R 2250 (K) 450- - (P, V) VI (D.V) II (P, V3) S (J K- mol-) (U: internal energy, S: entropy, p: pressure, V: volume, R: gas constant) (Given: molar heat capacity at constant volume, Cv.m of the gas is -R) 2 -