1 mole of ideal gas at 1 bar pressure and 310 K will be compressed to 2.2 bar pressure in the following two ways.

a) Polytropically (n:1.25)

b) First adiabatically compressed () to a pressure of 2.2 bar and then cooled to the final temperature at (a) under constant pressure.

During these operations, show that Qa-Qb=Wa-Wb.