The reaction is at equilibrium in a 1.00 L sealed vessel at 700 K with partial pressures ,

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

Problem

The reaction

2\,\mathrm{HI(g)}\rightleftharpoons\mathrm{H_2(g)}+\mathrm{I_2(g)}

is at equilibrium in a 1.00 L sealed vessel at 700 K with partial pressures

P_{\mathrm{HI}}=0.60\,\text{atm}

P_{\mathrm{H_2}}=0.10\,\text{atm}

, and

P_{\mathrm{I_2}}=0.10\,\text{atm}

. An additional 0.20 atm of HI is injected instantaneously while the volume and temperature remain constant. Calculate the new value of

Q_p

immediately after the injection.