Question

Consider the following reaction
2A(g) + B(g) ⇋ C(g)
A mixture containing 1.0 mole of A and 0.75 mole of B is left to attain equilibrium in a 1.0
dm3 flask at 65oC. The equilibrium mixture is found to contain 0.7 moles of A and 0.6 moles of B. Calculate Kc at 65oC.

Answer 1

$K_c = \frac{[C]}{[A]^2[B]}$

$K_c = \frac{[0.45]}{[0.7]^2[0.6]} = 1.53$