2. 1 m³ of an ideal gas at 600 K and 10 bar expands to 5 times its initial volume by each of the following process: (a) isothermal reversible process (b) adiabatic reversible process (c) adiabatic irreversible process in which expansion is against a restraining pressure of 100 kPa. For each case, calculate the final temperature, pressure, and the work done by the gas. Take Cp = 21 J/mol·K.