Determine the equilibrium constant for the following reaction at 25 degrees celsius.
N_2O_4 (gas) => 2NO_2 (gas), for which change of G at 25 celsius = +5.4kJ
At 25 deg celsius the gas in reaction vessel has a dark brown color.
The solution uses formula delta(G) = -R*T*ln(K) and includes calculations and answers. The reaction vessel being a dark brown color is analyzed.