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Reversible reactions and equilibria

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Question 5

Gas P is a deep red-brown gas. Gas Q is a pale yellow gas.

The two gases exist in dynamic equilibrium in a sealed tube:

Gas P⇌Gas Q \text{Gas P} \rightleftharpoons \text{Gas Q} Gas P⇌Gas Q

At room temperature, the equilibrium mixture is an orange-brown colour.

You are given:

  • a sealed glass tube containing the equilibrium mixture of Gas P and Gas Q
  • two beakers
  • a kettle
  • crushed ice

Devise an experiment to show how the position of equilibrium of this reaction is affected by temperature.

The sealed tube must not be opened.

[3]

Reversible reactions and equilibria Questions

  1. GCSE
  2. /Chemistry
  3. /Reversible reactions and equilibria

Practise Edexcel GCSE Chemistry Reversible reactions and equilibria with exam-style questions for Foundation and Higher tier. 38 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank