The standard Gibbs free energy change for a reaction is at 298 ,K and at 350 ,K

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

Problem

The standard Gibbs free energy change for a reaction is

-24.0\,\text{kJ}\,\text{mol}^{-1}

at 298\,K and

-19.0\,\text{kJ}\,\text{mol}^{-1}

at 350\,K. By what factor does the equilibrium constant change when the temperature is raised from 298\,K to 350\,K? Report the ratio

K_{350}/K_{298}

to two significant figures. (Use

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