Consider a system consisting of certain amount of perfect gas enclosed in a cylinder fitted with a frictionless piston. This system can undergo following processes

(i) Expansion with finite pressure difference with the surrounding.

(ii) Compression with infinitesimal pressure difference with the surrounding.

(iii) Heat transfer with finite temperature difference with the reservoir.

(iv) Heat transfer with infinitesimal temperature difference with the reservoir.

Out of these which processes are reversible?

(A) (i) and (iii)

(B) (i) and (iv)

(C) (ii) and (iii)

(D) (ii) and (iv)

Consider a system consisting of certain amount of perfect gas enclosed in a cylinder fitted with a frictionless piston. This system can undergo following processes

(i) Expansion with finite pressure difference with the surrounding.

(ii) Compression with infinitesimal pressure difference with the surrounding.

(iii) Heat transfer with finite temperature difference with the reservoir.

(iv) Heat transfer with infinitesimal temperature difference with the reservoir.

Out of these which processes are reversible?

(A) (i) and (iii)

(B) (i) and (iv)

(C) (ii) and (iii)

(D) (ii) and (iv)

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