Question

For the reaction below, describe the temperature and pressure conditions that would produce the highest yield for the forward reaction. Explain your answer in terms of Le Châtelier's principle.

CO (g) + 2 H2 (g) <----> CH3OH (g) H = -90.7 kJ/mol

Answer 1

temperature should be low as forward reaction is exothermic by Le Chatelier's principle decreasing temperature will push the equilibrium to the right side increasing yield
pressure should be high as total stitiometric moles of gas on reactant side(3) are greater than those on product side(1) so by LeChatelier's principle increasing pressure will push the equilibrium to the product side increasing yield