Which of the following is correct regarding e | vedclass

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(C) The thermodynamic definition of entropy change at constant temperature is given by $\Delta S = \frac{q_{rev}}{T}$.In terms of energy,the total ene

Vedclass · Accepted Answer

Entropy = $\frac{	ext{Unavailable energy of the system}}{	ext{Temperature}}$

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(C) The thermodynamic definition of entropy change at constant temperature is given by $\Delta S = \frac{q_{rev}}{T}$.In terms of energy,the total energy of a system can be divided into available energy (Gibbs free energy,$G$) and unavailable energy $(T \cdot \Delta S)$.Therefore,the unavailable energy is equal to $T \cdot \Delta S$,which implies that entropy is the measure of the unavailable energy per unit temperature,i.e.,$\Delta S = \frac{	ext{Unavailable Energy}}{T}$.Thus,option $(c)$ is the correct statement.

Which of the following is correct regarding entropy?

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