A) \[G-TS=H\]
B) \[G=H+TS\]
C) \[S=H-G\]
D) \[G=H-TS\]
Correct Answer: D
Solution :
Gibbs energy The maximum amount of energy available to a system during a process that can be converted into useful work is called Gibbs energy. It is given by G = H - TS where, H = enthalpy of the system S = entropy T = temperature Note - Change in free energy is given by the relation \[\Delta G=\Delta \,H-T\,.\,\,\Delta S\] For a reaction to be Spontaneous if \[\Delta S>0\], then \[\Delta G>0\] non-spontaneous is \[\Delta S<0\], then \[\Delta G>0\] in equilibrium if \[\Delta S=0\], then \[\Delta G=0\]
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