Gibbs free energy of mixing at constant pressure and temperature is always
A. 0
B. $$\infty $$
C. +ve
D. -ve
Answer: Option D
Solution (By Examveda Team)
Change of Gibbs free energy due to mixing is given as $$\Delta {G_{mix}} = RT\sum {} xlnx$$ since mole fraction is always less than one we can say the change due to mixing is negative.This Question Belongs to Chemical Engineering >> Chemical Engineering Thermodynamics
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