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5.3 Equilibria

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Question 1

Sulfuryl chloride decomposes in a reversible reaction.

SO2Cl2(g)⇌SO2(g)+Cl2(g) \mathrm{SO_{2}Cl_{2}(g) \rightleftharpoons SO_{2}(g) + Cl_{2}(g)} SO2​Cl2​(g)⇌SO2​(g)+Cl2​(g)

After a sample of sulfuryl chloride has reached equilibrium in a rigid, thermostatically controlled container, chlorine is injected through a valve. The valve is then closed and the thermostat maintains the original temperature.

The mixture reaches a new equilibrium. How do the amounts of chlorine and sulfuryl chloride compare with those in the original equilibrium mixture?

[1]
A

More chlorine and less sulfuryl chloride

B

The same amounts of chlorine and sulfuryl chloride

C

Less chlorine and more sulfuryl chloride

D

More chlorine and more sulfuryl chloride

Markscheme

5.3 Equilibria Questions

  1. GCSE
  2. /Chemistry
  3. /5.3 Equilibria

124 exam-style questions on OCR GCSE Chemistry 5.3 Equilibria, covering 5.3.1 Reversible reactions and dynamic equilibrium and 5.3.2 Changing the position of equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.

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