Which of the following formulas is correct for Gibbs free energy $(G)$?

Which of the following processes will never be a spontaneous process?

Describe Gibbs energy and spontaneity.

For the melting of $3 \ moles$ of water at $0 \, ^\circ C$,the $\Delta G^o$ is:

Under what conditions does a reaction always occur spontaneously?

The standard enthalpy of the decomposition of $N_2O_4$ to $NO_2$ is $58.04 \, kJ$ and standard entropy of this reaction is $176.7 \, J/K$. The standard free energy change for this reaction at $25 \, ^oC$ is $..... \, kJ$