Dissociates to for which equilibrium constant ( ) is 0.2 at 300 K

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

Problem

\text{N}_2\text{O}_4

dissociates to

\text{NO}_2

for which equilibrium constant (

K_p

) is 0.2 at 300 K. Find out the fraction of

\text{N}_2\text{O}_4

dissociated at total pressure of 4 atm pressure having 1 mole of Argon at equilibrium. Assume

\alpha

being small for solving the problem. (1) 0.158 (2) 0.058 (3) 0.250 (4) 0.015