The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P i

Question

The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT) = A . x₁. x₂, where A is a constant. The corresponding equation for ln y₁, where y₁ is the activity co-efficient of component 1, is

Options:

A . A . x₂²

B . Ax₁

C . Ax₂

D . Ax₁²

Answer: Option A

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