Chemistry

Problem

For the endothermic reaction

X \rightleftharpoons Y

\Delta H^\circ = 55.0\,\text{kJ mol}^{-1}

and

\Delta S^\circ = 125\,\text{J mol}^{-1}\,\text{K}^{-1}

. What is the equilibrium constant

K

450\,\text{K}

? (

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

) a)

\approx 2.2

\approx 1.4

\approx 0.72

\approx 16