Chemistry 5070 · O Level · Reversible reactions and equilibrium

Reversible reactions and equilibrium — practice question

The equation below shows how carbon monoxide reacts with hydrogen at a high temperature in a sealed container. $\text{CO}(\text{g}) + 2\text{H}_2(\text{g}) \rightleftharpoons \text{CH}_3\text{OH}(\text{g})$ (methanol) In the forward direction, the reaction is exothermic.
(a(i))[2]

Predict and explain the effect, if any, on the position of equilibrium when the pressure is raised and the temperature remains unchanged.

(a(ii))[1]

Predict and explain the effect, if any, on the position of equilibrium when the temperature is increased and the pressure remains unchanged.

(b)[2]

Methanol reacts with ethanoic acid, $\text{CH}_3\text{COOH}$, to form an ester. Name the ester and draw its displayed formula.

(c)[2]

Describe two general features of a homologous series.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: equilibrium position shifts to the right-hand side

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