Starting with the same initial conditions, and ideal gas expands from volume V1 to V2 in three different ways. The work done by the gas is W1 if the process is purely isothermal, W2 if purely isobaric and W3 if purely adiabatic, then
(A) W2 > W1 > W3;
(B) W2 > W3 > W1
(C) W1 > W2 > W3;
(D) W1 > W3 > W3;
Correct option (A) W2 > W1> W3;
Explanation:
The corresponding p–V graphs (also called indicator diagram) in three different processes will be as shown:
Area under the graph gives the work done by the gas
