For the endothermic reaction

CHEMISTRY · Single correct · AP · Chemistry · Equilibrium · Equilibrium

Problem

\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

(b)

3.2

(c)

3.7\times10^{1}

(d)

1.2\times10^{1}