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10.4 The Haber process and the use of NPK fertilisers

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Question 17
H

A pressure of about 200 atmospheres is used in the Haber process rather than a much higher pressure. Why is a much higher pressure not used?

[1]
A

A higher pressure would give a lower yield of ammonia

B

A higher pressure would give a lower rate of reaction

C

A higher pressure would need stronger and more expensive equipment

D

A higher pressure would stop the unreacted gases being recycled

Markscheme

10.4 The Haber process and the use of NPK fertilisers Questions

  1. GCSE
  2. /Chemistry
  3. /10.4 The Haber process and the use of NPK fertilisers

39 exam-style questions on AQA GCSE Chemistry 10.4 The Haber process and the use of NPK fertilisers, covering 10.4.1a The Haber process, 10.4.1b Equilibrium and rate in the Haber process, and 10.4.2 Production and uses of NPK fertilisers. Each one has a worked solution and a mark scheme showing where the marks go.

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