MCQ
The entropy change can be calculated by using the expression $\Delta\text{S}=\frac{\text{q}_\text{rev}}{\text{T}}\ .$ When water freezes in a glass beaker, choose the correct statement amongst the following :
- A
- B
- C
- D
✓
Answer
- $\Delta\text{S}_\text{(system)}$ decreases but $\Delta\text{S}_\text{(surrounding)}$ increases.
Explanation:
When water freezes, the heat is transferred from system to the surroundings, thus entropy of system decreases but entropy of surroundings increases.
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