Entropy changes for the process, H2O(l)→H2O(s) at normal pressure and 274 K are given below. ΔSsystem=−22.13,ΔSsurrounding=+22.05J/mol the process is non-spontaneous because :-
A
ΔSsystem is negative
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B
ΔSsurrounding is positive
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C
ΔSuniverse is negative
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D
ΔSsystem≠ΔSsurrounding
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Solution
The correct option is CΔSuniverse is negative ΔSuniverse=ΔSsystem+ΔSsurrounding =−22.13+22.05=−0.08 for a spontaneous process, it must be positive.