【Daily Question】Theoretical Foundation 2019.7.5
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Multiple-choice question: Among the following conclusions obtained by analyzing the phase diagram of water at constant pressure using the phase rule and the Clapeyron equation, which one is incorrect? (A) On each curve, the degree of freedom F = 1. (B) In each single-phase region, the degree of freedom F = 2. (C) On the freezing point curve of water, the signs of ΔHm (phase transition) and ΔVm are opposite. (D) At any point on the boiling point curve of water, the rate of change of pressure with temperature is negative. Answer: D. Hint: The answer can be seen in the response
(D) At any point on the boiling point curve of water, the rate of change of pressure with temperature is negative