Clausius-Clapeyron Equation gives accurate result, when the __________________?
Correct answer: D. All A, B. and C
- A. Vapour pressure is relatively low and the temperature does not vary over wide limits
- B. Vapour obeys the ideal gas law and the latent heat of vaporisation is constant
- C. Volume in the liquid state is negligible compared with that in the vapour state
- D. All A, B. and C
Explanation
The usual Clausius-Clapeyron approximation assumes an ideal-gas vapour, negligible liquid volume, nearly constant latent heat, and a limited temperature or low-pressure range. Since all these conditions are listed, option d is the intended answer.
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