Problem: Consider the following reaction: CO(g) + 2 H2(g) ⇌ CH3OH(g)An equilibrium mixture of this reaction at a certain temperature was found to have [CO] = 0.110 M , [H2]= 0.114 M , and [CH3OH] = 0.190 M. What is the value of the equilibrium constant (Kc) at this temperature?

FREE Expert Solution

We’re being asked to determine the equilibrium constant for this reaction:

CO(g) + 2 H2(g) ⇌ CH3OH(g)


Recall that the equilibrium constant is the ratio of the products and reactants

We use Kp when dealing with pressure and Kc when dealing with concentration:


Kp=PproductsPreactants     Kc=[products][reactants]


Note that solid and liquid compounds are ignored in the equilibrium expression.


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Problem Details

Consider the following reaction: CO(g) + 2 H2(g) ⇌ CH3OH(g)

An equilibrium mixture of this reaction at a certain temperature was found to have [CO] = 0.110 M , [H2]= 0.114 M , and [CH3OH] = 0.190 M. What is the value of the equilibrium constant (Kc) at this temperature?

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