The equilibrium constant at 25°C for the reaction: 2NO(g) + O₂(g) --> 2NO₂(g) Is Kp :-1.65 x 10¹² Calculate the value of ΔG, for the reaction at this temperature.

a. -4.09 kJ/mol
b. -5.85 kJ/mol
c. +5.85 kJ/mol
d. -69.7 kJ/mol
e. 1.65 kJ/mol