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The criterion for a spontaneous process isA. `DeltaGgt0`B. `DeltaGlt0`C. `DeltaG=0`D. `DeltaS_(Total)lt0` |
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Answer» Correct Answer - B The criterion for a spontaneous process is `DeltaG lt 0` Gibbs free energy is the maximum amount of energy available to a system during a process, that can be converted into useful work. `DeltaG=DeltaH-TDeltaS` It is called Gibbs-Helmholtz equation and useful in predicting the spontaneity of process. If `DeltaG=-ve`, the process is spontaneous. If `DeltaG= +ve`, the process is non-spontaneous. If `DeltaG = zero`, the process is in equilibrium. |
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