MCQ
For which of the following processes $\Delta\text{S}$ is negative?
- AH2(g) → 2H(g)
- BN2 (g, 1atm) → N2 (g, 5atm)
- C2SO3(g) → 2SO2(g) + O2(g)
- DC(diamond) → C(graphite)
✓
Answer
- N2 (g, 1atm) → N2 (g, 5atm)
Explanation:
At higher pressure N2(g) will have less entropy, i.e. $\Delta\text{S}$ will be -ve because molecules will be less free to move at high pressure.
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