Question

Select the incorrect set of elements:
I. Work done by the surrounding in case of infinite stage expansion is more than single expansion
II. Ineversible work is always greater than reversible work
III. On an ideal gas in case of single stage expansion and compression system as well as surrounding are restored back to their original states
IV. If gas is in thermodynamic equilibrium is taken from state $A$ to state $B$, by four successive single stage expansions. Then we can plot $4$ points on the P.V indicator diagram

• A. II
• B. I, II, III, IV
• C. II, IV
• D. I, II, IV

Answer 1

Answer: (A)

II

Reversible work is always greater than irreversible work.

$W_{rev}\ge W_{irrev}$

At the same temperature, this equilibrium exists.