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6.1 Improving processes and products

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Question 22
H

Hydrogen is made industrially by reacting methane with steam. The forward reaction is endothermic.

CH4(g)+H2O(g)⇌CO(g)+3H2(g) \mathrm{CH_{4}(g) + H_{2}O(g) \rightleftharpoons CO(g) + 3H_{2}(g)} CH4​(g)+H2​O(g)⇌CO(g)+3H2​(g)

Which conditions give the highest equilibrium yield of hydrogen?

[1]
A

High temperature and high pressure

B

High temperature and low pressure

C

Low temperature and high pressure

D

Low temperature and low pressure

Markscheme

6.1 Improving processes and products Questions

  1. GCSE
  2. /Chemistry
  3. /6.1 Improving processes and products

61 exam-style questions on OCR GCSE Chemistry 6.1 Improving processes and products, covering 6.1.1 Extracting metals industrially and by electrolysis, 6.1.2 Life cycle assessment and recycling, 6.1.3 Biological methods of metal extraction, 6.1.4 The Haber process and the production of fertilisers, 6.1.5 Alloys and their uses, 6.1.6 Corrosion and its prevention, 6.1.7 Comparing and selecting materials, and 6.1.8 Industrial conditions, rate and position of equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.

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