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The entropy change can be calculated by ...

The entropy change can be calculated by using the expression `DeltaS-(q_(rev))/(T)`. When water freezes in a glass beaker, choose the correct statement amongst the following:

A

`DeltaS` (system) decreases but `DeltaS` (surroundings) remains the same

B

`DeltaS` (system) increases but `DeltaS` (surroundings) decreases

C

`DeltaS` (system) decreases but `DeltaS` (surroundings) increases

D

`DeltaS` (system) decreases but `DeltaS` (surroundings) also decreases

Text Solution

Verified by Experts

The correct Answer is:
C
When water freezes, the heat is transferred from system to the surroundings, thus entropy of system decrease but entropy of surroundings increases.
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