Chemistry

Problem

For the endothermic reaction

\text{N}_2(g)+\text{O}_2(g)\rightleftharpoons 2\,\text{NO}(g)

, the equilibrium constant is

K_{298}=3.2

298\,\text{K}

. The standard enthalpy change for the reaction is

\Delta H^\circ=+41.0\,\text{kJ}\,\text{mol}^{-1}

and may be considered temperature-independent over the range studied. What is the value of

K

350\,\text{K}

? a)

0.27

3.2

3.7\times10^{1}

1.2\times10^{1}