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

This question belongs to Chemical Engineering Chemical Engineering Thermodynamics
Chemical Engineering Thermodynamics
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Gibbs free energy of mixing at constant pressure and temperature is always

Answer & Solution
Correct Answer: Option D
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.
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