Clausius–Clapeyron equation

2016 1 question

1. 1 Thermodynamics
   Consider the following liquid-vapour equilibrium: Liquid $\rightleftharpoons$ Vapour. Which of the following relations is correct?
   A $\frac{d\ln P}{dT} = \frac{-\Delta H_v}{RT}$ B $\frac{d\ln P}{dT^2} = \frac{-\Delta H_v}{T^2}$ C $\frac{d\ln P}{dT} = \frac{\Delta H_v}{RT^2}$ D $\frac{d\ln G}{dT^2} = \frac{-\Delta H_v}{RT^2}$
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