A reaction mixture is maintained at 75 °C

CHEMISTRY · Single correct · A Level · Chemistry · Thermodynamics · Thermodynamics

Problem

A reaction mixture is maintained at 75 °C, and the equilibrium constant is found to be

K=4.7\times10^{-3}

. What is the value of

\Delta G^{\circ}

(in kJ mol⁻¹), and which side of the reaction is favored at equilibrium? (R = 8.314 J mol⁻¹ K⁻¹) (a)

+3.3\ \text{kJ mol}^{-1};\ \text{reactants are favored}

(b)

-15.5\ \text{kJ mol}^{-1};\ \text{products are favored}

(c)

+15.5\ \text{kJ mol}^{-1};\ \text{reactants are favored}

(d)

+35.8\ \text{kJ mol}^{-1};\ \text{reactants are favored}