If for an equation like N2O4(g) ⇌ 2NO2(g), the ΔG (reaction) expression given is ΔG = 4.73 KJ mol^-1 — AITS & Test Series Chemistry Question

Question

If for an equation like N2O4(g) ⇌ 2NO2(g), the ΔG (reaction) expression given is ΔG = 4.73 KJ mol^-1 + 2.5 KJ mol^-1 ln[P^2_NO2 / P_N2O4] then