Considering the following reaction: CO(g) + 2 H2(g) --> CH3OH(g) Suppose that the initial concentrations of the reactants are [CO] = 0.500 M and [H2] = 1.00 M. Assuming that there is no product at the beginning of the reaction and that at equilibrium [CO] = 0.15 M, what is the equilibrium constant at this new temperature?
The equilibrium constant is 26.
First, write the balanced chemical equation with an ICE table.
CO(g) + 2H₂(g) ⇌ CH₃OH(g)
I/mol·L⁻¹: 0.500; 0.100; 0
E/mol·L⁻¹: 0.500 -
At equilibrium, [CO] = 0.15 mol/L = (0.500 -