Question

The water-gas shift reaction plays a central role in the chemical methods for obtaining cleaner fuels from coal: CO(g) + H2O (g) ⇋ CO2(g) + H2(g) At a given temperature, KP= 2.7. If 0.10 mol of CO and H2O, and 0.20 mol of H2 and CO2 are put in a 2.0 l flask, is the mixture at equilibrium, if not which direction will it shift?

Answer 1

Answer:

The reaction is not in equilibrium and moves to the left until Q equals Kc.

Explanation:

Hello!

First we must check that the equation is balanced.  

We propose the constant Kc for the balanced equation.  

We propose Q for the balanced equation.  

We calculate the value of Q and compare with Kc

If Q = Kc the reaction is in equilibrium.

If Q> Kc the reaction moves from right to left.

If Q <Kc the reaction shifts from left to right.  

We obtain the value of Kc from the value of Kp. If the variation of mol is zero Kp = Kc  

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