A)-905 kj/mole (b)-895 kj/mole (c)895 kj/mole (d) 905 kj/mole one mole of an ideal gas initially at 300 k and a pressure of 10 atm undergoes adiabatic expansion

a)-905 kJ/mole (b)-895 kJ/mole (c)895 kJ/mole (d) 905 kJ/mole One mole of an ideal gas initially at 300 K and a pressure of 10 atm undergoes adiabatic expansion. (1) reversibly (11) irreversibly against a constant external pressure of 2 atm until the final pressure becomes equal to the external pressure. Find the value of AS,vstem for (1) and (1) in the terms oI K (heat capacity at constant volume is Cv= 1.5 R). Calmlata tha AL