Chemical Engineering - Chemical Engineering Thermodynamics - Discussion

Discussion Forum : Chemical Engineering Thermodynamics - Section 7 (Q.No. 37)
37.
Gibbs free energy of mixing at constant pressure and temperature is always
0
+ ve
- ve
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Jeetendra Kushwaha said:   6 years ago
The Gibbs free energy change determines whether mixing at constant(absolute) temperature and pressure is a spontaneous process. For an ideal solution, the Gibbs free energy of mixing is always negative, meaning that the mixing of ideal solutions is always spontaneous.

Papun said:   8 years ago
dG = -SdT+VdP.
So at constant temperature and pressure dG is 0.

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