Q. 94.0( 2 Votes )

The entropy change can be calculated by using the expression

ΔS =. When water freezes in a glass beaker, choose the correct statement amongst the following:

A. ΔS (system) decreases but ΔS (surroundings) remains the same.

B. ΔS (system) increases but ΔS (surroundings) decreases.

C. ΔS (system) decreases but ΔS (surroundings) increases.

D. ΔS (system) decreases and ΔS (surroundings) also decreases

Answer :

Freezing is an exothermic release so there will be release in energy, which is absorbed by surrounding.

ΔS (system)=- and ΔS (surroundings)=


Therefore, the entropy of system will be decrease and that of surrounding will be decrease.

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