At 700 K the reaction 2 SO (g) + O (g) ⇌ 2 SO (g) has

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

Problem

At 700 K the reaction 2 SO

_2

(g) + O

_2

(g) ⇌ 2 SO

_3

(g) has

K_p = 3.0 \times 10^{3}

. In a 1.0 L rigid vessel at this temperature the total pressure at equilibrium is 1.50 atm, and the partial pressure of O

_2

is measured to be 0.10 atm. Calculate the equilibrium partial pressure of SO

_3

(g) in atm.