+3 votes
in JEE by kratos

A solid body of constant heat capacity 1 J/°C is being heated by keeping it in contact with reservoirs in two ways:

(i) Sequentially keeping in contact with 2 reservoirs such that each reservoir supplies same amount of heat.

(ii) Sequentially keeping in contact with 8 reservoirs such that each reservoir supplies same amount of heat. In both the cases body is brought from initial temperature 100°C to final temperature 200°C. Entropy changes of the body in the two cases respectively is

(A) ln 2, 4 ln 2

(B) ln 2, ln 2

(C) ln 2, 2 ln 2

(D) 2 ln 2, 8 ln 2

1 Answer

+1 vote
by kratos
 
Best answer

Correct option (B) ln 2, ln 2

Explanation

Since entropy is a state function, therefore change in entropy in both the processes should be same.

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