In a sealed vessel at the reaction 2 , NOCl(g) 2 , NO(g) + Cl_2(g) is allowed to proceed

CHEMISTRY · Subjective · A Level · Chemistry · Gaseous equilibria (Kp) · Gaseous equilibria (Kp)

Problem

In a sealed

1.00\,\text{L}

vessel at

400\,\text{K}

the reaction

2\,\mathrm{NOCl(g)} \rightleftharpoons 2\,\mathrm{NO(g)} + \mathrm{Cl_2(g)}

is allowed to proceed. The initial partial pressure of

\mathrm{NOCl}

1.00\,\text{atm}

, and no products are present. At equilibrium, the partial pressure of

\mathrm{Cl_2}

0.200\,\text{atm}

. Calculate the equilibrium constant

K_p

400\,\text{K}