Question

The reaction, CO_{(g) +} 3H_2(g) ↔ CH_4(g) + H₂O _(g) is at equilibrium at 1300 K in a 1L flask. It also contain 0.30 mol of CO, 0.10 mol of H₂ and 0.02 mol of H₂O and an unknown amount of CH₄ in the flask. Determine the concentration of CH₄ in the mixture. The equilibrium constant, Kc for the reaction at the given temperature is 3.90. 

Answer 1

Let the concentration of methane at equilibrium be x. 

It is given that K_c = 3.90. 

Therefore,