NEET | 2016Chemical EquilibriumEasy

Question

Consider the following liquid - vapour equilibrium.
Liquid ⇌ Vapour
Which of the following relations is correct?

Options

A.

d In GdT2=∆HυRT2

B.

d In PdT=-∆HυRT

C.

d In  PdT2=-∆HυT2

D.

d In PdT=∆HυRT2

Solution

P = Ke−ΔH⁄RT
ln P = ln K - ∆HRT
ddTIn P=∆HυRT2
∴ d In PdT=∆HυRT2

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