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2 marksRates of Reaction

CAPE Chemistry Unit 1 · 2017 · Paper 2 · Question 5(b)(i)

Parts (b) (i) to (b) (iii) refer to the following reaction: aX + bY → Products

Write an expression for the rate law.

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Other parts of this question

  1. 5(a)(i)Explain EACH of the following terms: Rate law[2 marks]
  2. 5(a)(ii)Explain EACH of the following terms: Order of reaction[2 marks]
  3. 5(b)(ii)Write an expression for the OVERALL order of reaction.[1 mark]
  4. 5(b)(iii)The overall order of this reaction was found to follow second-order kinetics. Deduce the units of the rate constant for the reaction.[1 mark]
  5. 5(c)Use the information relating to the kinetics of the reaction to write the equation representing the rate determining step. Give a reason for your response.…[3 marks]
  6. 5(d)(i)Plot the data on the grid provided on page 17, circling the plotted points.[2 marks]
  7. 5(d)(ii)Using the graph in (d) (i), calculate the rate constant for the decomposition of nitrogen(V) oxide at 333 K, stating the appropriate units.[2 marks]

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