An Ideal Gas Is to Taken Reversibly from State I

An ideal gas is to taken reversibly from state i, at temperature T₁, to other states labeled I, II, III, IV and V on the p-V diagram below. All are at the same temperature T_2. Rank the five processes according to the change in entropy of the gas, least to greatest.

A) I, II, III, IV, V
B) V, IV, III, II, I
C) I, then II, III, IV, and V tied
D) I, II, III, and IV, tied, then V
E) I and V tied, then II, III, IV