A friend tells you "Free energy \(G\) and pressure \(P\) are directly related by the equation \(G=G^{\circ}+R T \ln (P)\). Also, \(G\) is related to the equilibrium constant \(K\) in that when \(G_{\text {products }}=G_{\text {reactants }}\), the system is at equilibrium. Therefore it must be true that a system is at equilibrium when all pressures are equal." Do you agree with this friend? Explain.