Published by:
CGP EDU Academic Team
Published on: August 12, 2026
The entropy change can be calculated by using the expression 
. When water freezes in a glass beaker, choose the correct statement amongst the following:
A
(system) decreases but 
(surroundings) remains the same
B
(system) increases but 
(surroundings) decreases
C
(system) decreases but 
(surroundings) increases
D
(system) decreases but 
(surroundings) also decreases
Text Solution
Verified by ExpertsThe correct answer is:
C
By using the following expression, the entropy change can be calculated.
Entropy of the surrounding increases when water freezes in a glass beaker, 
(system) decreases because molecules in solid ice are less random than in liquid water. However, when water freezes to ice, heat is released which is absorbed by the surroundings.
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