At for the reaction

CHEMISTRY · Subjective · A Level · Chemistry · Thermodynamics · Thermodynamics

Problem

\Delta G^\circ = 77.77 \text{ kJ mol}^{-1}

1000 \text{ K}

for the reaction

\frac{1}{2}\text{N}_2(g) + \frac{1}{2}\text{O}_2(g) \rightleftharpoons \text{NO}(g)

. What is the partial pressure of

\text{NO}

under equilibrium at

1000 \text{ K}

for air at

1 \text{ atm}

pressure containing

80\%

\text{N}_2

and

20\%

\text{O}_2

by volume ?