For a particular reaction

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

Problem

For a particular reaction, equilibrium data collected at a single temperature give the point

(\ln K = 1.20,\; \Delta G^{\circ} = -3.0\,\text{kJ mol}^{-1})

on a

\Delta G^{\circ}

versus

\ln K

plot. Assuming the relationship between the variables is linear and passes through the origin, what is the predicted value of

\Delta G^{\circ}

when

\ln K

is 3.00 at the same temperature? (a)

+7.5\,\text{kJ mol}^{-1}

(b)

-1.2\,\text{kJ mol}^{-1}

(c)

-7.5\,\text{kJ mol}^{-1}

(d)

-2.5\,\text{kJ mol}^{-1}