Two samples of air A and B having same composition and initially at same temperature T, pressure P and volume V are taken.
A and B may be made to undergo following process :
Case 1 : A and B are compressed from volume V to volume V/2. A is compressed isothermally while B is compressed adiabatically. The final pressures are PAC and PBC respectively.
Case 2 : A and B are allowed to undergo expansion from volume V to volume 2V. A undergoes isothermal expansion while B undergoes adiabatic expansion. The final pressures of A and B are PAE and PBE respectively.
Which of the following is correct ?
(a) PAC = PBC and PAE = PBE
(b) PAC = PAE and PBC = PBE
(c) PAC > PBC and PAE < PBE
(d) PAC < PBC and PAE > PBE