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Chemical Engineering · Q464

Chemical Engineering Thermodynamics

Engineering and GATE · Chemical Engineering · question 464

Q464

Gibbs free energy of mixing at constant pressure and temperature is always

A.
0
B.
C.
+ve
D.
-ve
Answer

Answer: Option D

Solution

Answer: Option D
Solution:
Change of Gibbs free energy due to mixing is given as     since mole fraction is always less than one we can say the change due to mixing is negative.