A gas is expanded from volume "V1' to 'V2' by three different process these three process are isothermal, adiabatic and isobaric. Work done by gas in isothermal is W and that in adiabatic is W2 and that in isobaric is W3. Select the correct option?
(1) W1> W2> W3
(2) W2 < W1< W3
(3) W1 = W2 = W3
(4) W1 > W2 = W3