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Question

When you make ice cubes, the entropy of water

A
does not change
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B
increases
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C
decreases
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D
may either increase or decrease depending on the process
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Solution

The correct option is C decreases
Entropy is related to randomness of the particles of the system. More the randomness, more is the entropy.
We know that, in a solid, particles are in less random motion than liquid. Thus, the entropy of a solid is less than of liquid.
Hence, the entropy decreases when we make ice cubes.
Why this question?Tips: Entropy is the measure of randomnessof the particles of the system.

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