Quelpr
1 markRates of Reaction

CSEC Chemistry · January 2012 · Paper 2 · Question 2(c)(iii)a)

If the temperature at which the reaction was carried out was changed from 25 °C to 40 °C, would the rate of reaction increase or decrease?

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 2(a)Assuming that the limestone granules are pure calcium carbonate, write a balanced equation for its reaction with hydrochloric acid.[2 marks]
  2. 2(b)(i)Use the data from Figure 3 to determine the total volume of gas produced.[1 mark]
  3. 2(b)(ii)to calculate the moles of gas produced at STP [1 mole of any gas at STP has a volume of 22 400 cm³.][1 mark]
  4. 2(b)(iii)to calculate the mass of limestone granules used. [Relative molecular mass of CaCO₃ is 100.][2 marks]
  5. 2(c)(i)What is meant by the term 'rate of reaction'?[1 mark]
  6. 2(c)(ii)Besides temperature, identify TWO other factors that can affect the rate of the reaction.[2 marks]
  7. 2(c)(iii)b)Explain your answer.[2 marks]
  8. 2(d)(i)Is it LIKELY that calcium carbonate will conduct electricity in its solid state?[1 mark]
  9. 2(d)(ii)Give a reason for your answer.[2 marks]

More practice: the rest of this paper · more Rates of Reaction questions · all CSEC Chemistry past papers