Variation of equilibrium pressure with temperature for any two phases of a given substances is given by the ____________ equation?
Correct answer: B. Clapeyron
- A. Gibbs-Duhem
- B. Clapeyron
- C. Maxwell's
- D. None of these
Explanation
The Clapeyron equation gives the slope of the phase-equilibrium curve, dP/dT, in terms of latent heat and the volume change between the two phases. Gibbs-Duhem and Maxwell relations serve different thermodynamic purposes.
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