Question

State whether the given statement is true or false:

A reaction for which $\Delta S$ is positive is always spontaneous.

Answer 1

For a reaction to be spontaneous, $\Delta G<0$

$\Delta G=\Delta H-T\Delta S$

Even when $\Delta S>$ i.e. $\Delta G$ can be positive when $T\Delta H>\Delta S$.

Hence, the statement given is incorrect.