One mole of a perfect gas, initally at a pressure and temperature of `10^(5) N//m^(2)` and 300 K, respectively, expands isothermally unitl its volume is doubled and then adiabatically until its volume is again doubled. Find final pressure and temperature of the gas Find the total work done during the isothermal and adiabatic processes. Given `gamma = 1.4`. Also draw the P-V diagram for the process.