In an irreversible process taking place at constant P and T in which only pressure volume work is being done by the system the change in Gibb's energy ∆G and change in entropy ∆S, satisfy the criterion
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a
∆SV.U=0, ∆GT,P=0
b
∆SV.U=0, ∆GT,P=+ve
c
∆SV.U=-ve, ∆GT,P=-ve
d
∆SV.U=+ve, ∆GT,P=-ve
answer is D.
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Detailed Solution
For a spontaneous change (work is being done by the system) dGT,P=-ve and dSV,U=+ve