Chemistry Practice Problems The Reaction Quotient Practice Problems Solution: The water-gas shift reaction is an extremely impor...

Solution: The water-gas shift reaction is an extremely important one in industry.CO(g) + H2O(g) ⇌ CO2(g) + H2(g)At a given temperature, Kp =2.7. If 0.13 moles of CO, 0.56 moles of H2O, 0.62 moles of CO2 and 0.43 moles of H2 are placed in a 2.0 L flask, then

Problem

The water-gas shift reaction is an extremely important one in industry.

CO(g) + H2O(g) ⇌ CO2(g) + H2(g)

At a given temperature, Kp =2.7. If 0.13 moles of CO, 0.56 moles of H2O, 0.62 moles of CO2 and 0.43 moles of H2 are placed in a 2.0 L flask, then

Solution

We are being asked what would be the reaction condition of the given reaction mixture given the moles of the reactants and product. 

CO(g) + H2O(g) ⇌ CO2(g) + H2(g)

We will use the reaction quotient, Q, to determine if a chemical reaction would be at equilibrium or not. The formula for Q is:

Q=productsreactants

Depending on if Q is greater than or less than K our reaction will shift to attain equilibrium by reaching the equilibrium constant K:

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