Figure shows the P-V diagram of an ideal gas undergoing a change of state from A to B. Four different parts I, II, III and IV as shown in the figure may lead to the same change of state.

Select all that apply

• Option A

  Change in internal energy is same in IV and III cases, but not in I and II.

• Option B

  Change in internal energy is same in all the four cases.

• Option C

  Work done is maximum in case I

• Option D

  Work done is minimum in case II.