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Chemical Engineering · Q365

Chemical Engineering Thermodynamics

Engineering and GATE · Chemical Engineering · question 365

Q365

The molar excess Gibbs free energy, G^ E , for a binary liquid mixture at T and P is given by, ( G^ E RT ) = Ax1x2, where A is a constant. The corresponding equation for ln y1, where y1 is the activity co-efficient of component 1, is

The molar excess Gibbs free energy, , for a binary liquid mixture at T and P is given by,  = Ax1x2, where A is a constant. The corresponding equation for ln y1, where y1 is the activity co-efficient of component 1, is
A.
Ax22
Answer
B.
Ax1
C.
Ax2
D.
Ax12

Answer: Option A

Solution

Answer: Option A
Solution:
Given,
On partially differentiating it
As
Hence