Quelpr
1 markPaper 1 · Multiple choiceAmmonia

CAPE Chemistry Unit 2 · 2017 · Paper 1 · Question Q33

From the reaction given below, a high pressure would give the best yield, but in industry, a moderate pressure is used. \text{N}_2(\text{g}) + 3\text{H}_2(\text{g}) \rightleftharpoons 2\text{NH}_3(\text{g}) Why is a moderate pressure used in industry rather than high pressure?

  1. (A)It is too expensive to produce high pressure.
  2. (B)The reaction would be uncontrollably fast.
  3. (C)The reaction would be too slow to generate adequate \text{NH}_3.
  4. (D)It is easier to remove the \text{NH}_3 from the reaction container.

The answer is shown once you've answered.

Practise this question

More practice: the rest of this paper · more Ammonia questions · all CAPE Chemistry Unit 2 past papers