A mixture, containing 0.0750 M HCl(g) and 0.0330 M O₂(g) is allowed to come to equilibrium at 480°C. 4HCl(g) + O₂(g) ⇌ 2Cl₂(g) + 2H₂O(g)
At equilibrium [Cl₂] = 0.030 M. What is the value of Kc?

Question

Quizplus · Accepted Answer

The equilibrium expression can be written as: Kc = ([Cl₂]2[H₂O]) / ([HCl]4[O₂]) We are given that: [Cl₂] = 0.030 M [HCl] = 0.0750 M [O₂] = 0.0330 M We can substitute these values into the equilibrium expression to obtain: Kc = ([0.030]2[H₂O]) / ([0.0750]4[0.0330]) = 890 Therefore, the answer is B.

A Mixture, Containing 0