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Question 7

Sulfur trioxide is produced in the Contact process:

2SO2(g)+O2(g)⇌2SO3(g) 2\text{SO}_2\text{(g)} + \text{O}_2\text{(g)} \rightleftharpoons 2\text{SO}_3\text{(g)} 2SO2​(g)+O2​(g)⇌2SO3​(g)

What happens when this reaction reaches dynamic equilibrium in a closed system?

A

The forward reaction happens at a faster rate than the reverse reaction.

B

The forward and reverse reactions stop happening.

C

The forward and reverse reactions happen at the same rate.

D

The reverse reaction happens at a faster rate than the forward reaction.

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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