Which of the following processes has a negative ΔS?

(A) evaporating 1 mol of a liquid

(B) raising the temperature of 1 L of water from 295 K to 350 K

(C) freezing of 1 mol of a liquid

(D) None of the above

please give me the answer and explanation if you could thanks !!

1 Answer

  • 3 years ago
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    (C) freezing of 1 mol of a liquid

    The explanation is that ∆S being negative represents a DECREASE in entropy, i.e. less disorder, or more order. Solid has more order (less disorder) than liquid and liquid less disorder than gas. So solid (freezing) has the least amount of disorder and the lowest entropy.

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