Entropy change (dS) is defined as : (a) dS = δq / T (b) dS = dH / T

Question

Entropy change (dS) is defined as : 

\((a)\ dS = \frac{\delta q}{T}\)

\((b)\ \frac{dH}{T}\)

\((c)\ dS = \frac{\delta q_{rev}}{T}\)

\((d)\ dS = \frac{(dH - dG)}{T}\)

Answer 1

Correct option is : \((c)\ dS = \frac{\delta q_{rev}}{T}\)