An ideal gas is made to go from a state A to state B fig. (1a & b) in the following two different ways.
 

(i) an isobaric and then an isochoric process, and
(ii) an isochoric and then an isobaric process.
The work done by the gas in the two processes are W₁ and W₂ respectively. Then

• A

  W₁ = W₂

• B

  W₁ > W₂

• C

  W₁ < W₂

• D

  W₁ =W₂/2