At , the equilibrium constant for the gas-phase reaction N_2O_4 (g) 2 , NO_2 (g) is .…

CHEMISTRY · Subjective · A Level · Chemistry · Thermodynamics · Thermodynamics

Problem

298\,\text{K}

, the equilibrium constant for the gas-phase reaction

\mathrm{N_2O_4}(g) \leftrightarrow 2\,\mathrm{NO_2}(g)

4.8 \times 10^3

. Calculate the standard Gibbs free energy change,

\Delta G^\circ

(in

\,\text{kJ mol}^{-1}

), for the dissociation of

\mathrm{N_2O_4}

at this temperature. (Use

R = 8.314\,\text{J mol}^{-1}\,\text{K}^{-1}