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Question 14

Look at the equation for a reversible reaction.

2SO2(g)+O2(g)⇌2SO3(g)ΔH=−197 kJ mol−1 2\text{SO}_2(\text{g}) + \text{O}_2(\text{g}) \rightleftharpoons 2\text{SO}_3(\text{g}) \quad \Delta H = -197\text{ kJ mol}^{-1} 2SO2​(g)+O2​(g)⇌2SO3​(g)ΔH=−197 kJ mol−1

The reversible reaction forms a dynamic equilibrium in a sealed container.

Which of the following would move the position of equilibrium to the right?

A

Decreasing the pressure and increasing the temperature.

B

Increasing the pressure and decreasing the temperature.

C

Increasing the pressure and increasing the temperature.

D

Decreasing the pressure and using a catalyst.

Markscheme

Equilibria Questions

  1. GCSE
  2. /Chemistry
  3. /Equilibria

25 exam-style questions on OCR GCSE Chemistry Equilibria. Each one has a worked solution and a mark scheme showing where the marks go.

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