Question

At 340 K, Kp for the reaction $N_{2}O_{4}(g)\rightleftharpoons 2NO_{2}(g)$ is 0.8 atm. Calculate the percent dissociation of $N_{2}O_{4}$ at 340 K and a total pressure of 1 atmosphere.

Answer 1

Answer:

Correct option is

A

50%

N

2

O

4

→2NO

2

At eqm 1-x 2×x

K

p

=(2x/1+x)

2

×(380/760)

2

/(1−x/1+x)×(380/760)=0.667.

x=0.5.

So 50% dissociation happens.