Chemistry

Problem

For the gas-phase equilibrium reaction

2\,\text{NO}_2 \rightleftharpoons \text{N}_2\text{O}_4

, the equilibrium constant at

298\,\text{K}

K_p = 5.4

. Which of the following gives the value of the equilibrium constant

K_p'

for the reverse reaction carried out at the same temperature? a)

(5.4)^2

5.4

\dfrac{1}{5.4}

\dfrac{1}{(5.4)^2}