The $\Delta G$ in the process of melting of ice at $-15\,^{\circ}C$ is

When is a reaction spontaneous?

$\Delta G$ in the process of melting of ice at $-15\,^{\circ}C$ is

Under what conditions will a reaction become spontaneous at all temperatures?

For a particular reversible reaction at temperature $T$,$\Delta H$ and $\Delta S$ were found to be both positive. If $T_e$ is the temperature at equilibrium,the reaction would be spontaneous when

For the melting of $3 \ mol$ of ice at $0^o \text{C}$,$\Delta G = \dots \dots$