A rigid container at is filled with of and no

CHEMISTRY · Single correct · A Level · Chemistry · Gaseous equilibria (Kp) · Gaseous equilibria (Kp)

Problem

A rigid

10.0\,\text{L}

container at

298\,\text{K}

is filled with

1.00\,\text{mol}

N_2O_4(\text{g})

and no

NO_2(\text{g})

. The system reaches equilibrium according to

N_2O_4(\text{g}) \;\rightleftharpoons\; 2\,NO_2(\text{g})

for which

K_p = 1.25

at this temperature. What is the equilibrium partial pressure of

N_2O_4(\text{g})

? (a)

1.41\,\text{atm}

(b)

0.92\,\text{atm}

(c)

1.71\,\text{atm}

(d)

1.21\,\text{atm}