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Reversible reactions and equilibria

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Question 11

Gas X\mathbf{X}X is an intense, deep violet gas. Gas Y\mathbf{Y}Y is a completely colourless gas.

The two gases exist in dynamic equilibrium inside a sealed glass ampoule:

Gas X⇌Gas Y \text{Gas X} \rightleftharpoons \text{Gas Y} Gas X⇌Gas Y

At room temperature, the equilibrium mixture inside the ampoule is a pale lavender colour.

You are provided with:

  • the sealed glass ampoule containing the equilibrium mixture of Gas X\mathbf{X}X and Gas Y\mathbf{Y}Y
  • two insulated beakers
  • a vacuum flask containing boiling water
  • a thermos of crushed ice

Devise an experimental procedure to demonstrate how the position of equilibrium of this reaction is affected by temperature.

The sealed ampoule 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