Specific/molar Gibbs free energy for a pure substance does not change during
A. Sublimation
B. Vaporisation
C. Melting
D. Either A, B or C
Answer: Option D
Solution(By Examveda Team)
During the phase change the gibbs free energy doesn’t change since the pressure and temperature are remained constant during phase change.For single component and closed system : $$dG = VdP - SdT$$
This Question Belongs to Chemical Engineering >> Chemical Engineering Thermodynamics
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