Question

For an isolated system ∆U = 0 is equal to zero then,

A) ∆S = 0
B) ∆S > 0
C) ∆S < 0
D) the value of ∆S cannot be predicted
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What would be the answer of this question and why?

Answer 1

The value of ∆S is not depended upon the value of ∆U.
And In the case of isolated system the entropy changes always greater than 0.
So B) ∆S > 0.