Chemistry

Problem

For a reaction with

\Delta H^\circ = -40.0\,\text{kJ mol}^{-1}

and

\Delta S^\circ = -50\,\text{J mol}^{-1}\,\text{K}^{-1}

, what is the approximate value of the ratio

\frac{K_{700}}{K_{350}}

, where the subscripts denote temperature in kelvins? (

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

) a)

1 \times 10^{3}

1

1 \times 10^{-3}

4 \times 10^{-4}