Figure 12.5 shows the P-V diagram of an ideal gas undergoing a change

1.	Figure 12.5 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.(a) Change in internal energy is same in IV and III cases, but not in I and II.(b) Change in internal energy is same in all the four cases.(c) Work done is maximum in case I(d) Work done is minimum in case II.
Answer» (b) Change in internal energy is same in all the four cases. (c) Work done is maximum in case I

Figure 12.5 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.(a) Change in internal energy is same in IV and III cases, but not in I and II.(b) Change in internal energy is same in all the four cases.(c) Work done is maximum in case I(d) Work done is minimum in case II.

Answer»

(b) Change in internal energy is same in all the four cases.

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