Quelpr
1 markNon-Metals

CSEC Chemistry · January 2007 · Paper 2 · Question 3(a)(i)

Ammonia is manufactured by the Haber process. Figure 2 shows the percentage yield of ammonia under different temperature and pressure conditions.

Over what range of temperatures and pressures is ammonia NORMALLY produced by the Haber process?

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 3(a)(ii)a)Based on the information given in Figure 2, deduce whether increased yields of ammonia would result from conditions of high or low temperature.[2 marks]
  2. 3(a)(ii)b)Based on the information given in Figure 2, deduce whether increased yields of ammonia would result from conditions of high or low pressure.[1 mark]
  3. 3(a)(iii)Suggest TWO reasons why ammonia is not usually produced at 100°C and 1200 atm.[2 marks]
  4. 3(a)(iv)With reference to the properties of ammonia, nitrogen and hydrogen, suggest ONE way that ammonia can be separated from the other gases. Give a reason for your…[2 marks]
  5. 3(b)(i)Write a balanced equation for the reaction between chlorine and ammonia.[2 marks]
  6. 3(b)(ii)Both NH4Cl and NH2Cl dissolve in water. Aqueous NH4Cl conducts electricity, but aqueous NH2Cl does not. What does this information suggest about the type of…[2 marks]
  7. 3(b)(iii)Draw a dot-cross diagram to show the bonding in NH2Cl.[2 marks]
  8. 3(b)(iv)Suggest ONE reason why NH2Cl dissolves in water.[2 marks]

More practice: the rest of this paper · more Non-Metals questions · all CSEC Chemistry past papers