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Kinetic Theory · CAPE Chemistry Unit 1

48 past-paper questions on Kinetic Theory, part of Fundamentals in Chemistry, from every CAPE Chemistry Unit 1 paper on Quelpr.

Practise Kinetic Theory
  1. 3(a)(i)1 mark· CAPE Chemistry Unit 1 · 2005 · Paper 1State the behaviour of gases described by Boyle's law.
  2. 3(a)(ii)1 mark· CAPE Chemistry Unit 1 · 2005 · Paper 1State the behaviour of gases described by Charles' law.
  3. 3(b)(i)2 marks· CAPE Chemistry Unit 1 · 2005 · Paper 1State TWO assumptions made when the kinetic theory is used to explain the behaviour of gases.
  4. 3(b)(ii)2 marks· CAPE Chemistry Unit 1 · 2005 · Paper 1Describe how the kinetic theory explains EITHER Boyle's law OR Charles' law.
  5. 3(c)4 marks· CAPE Chemistry Unit 1 · 2005 · Paper 1A mass of gas occupies 1.00 dm³ at a given pressure and 25 °C. Assuming ideal behaviour, calculate its volume at 30 °C, stating any assumptions made.
  6. 1(a)4 marks· CAPE Chemistry Unit 1 · 2005 · Paper 2Describe fully the laboratory procedure to measure the melting point of substance A.
  7. 1(a)(i)1 mark· CAPE Chemistry Unit 1 · May/June 2023 · Paper 2State Boyle's law.
  8. 1(a)(ii)1 mark· CAPE Chemistry Unit 1 · May/June 2023 · Paper 2State Charles' law.
  9. 1(b)4 marks· CAPE Chemistry Unit 1 · May/June 2023 · Paper 2List FOUR assumptions made about gas molecules in the kinetic molecular theory with reference to ideal gases.
  10. 1(c)4 marks· CAPE Chemistry Unit 1 · May/June 2023 · Paper 2A flask has a mass of 47.392 g when empty, and 47.816 g when filled with acetone vapor at 100 °C and 745 mm Hg. If the volume of the flask is 247.3 mL, calculate the molar mass of the acetone. (R = 0.0821 L atm mol⁻¹…
  11. 1(d)(i)2 marks· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2Explain the change from a solid to a liquid state using kinetic theory.
  12. 1(d)(ii)2 marks· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2Explain the nature of the liquid state using kinetic theory.
  13. 1(d)(iii)2 marks· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2Explain the change from liquid to the gaseous state using kinetic theory.
  14. 1(e)(i)3 marks· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2Calculate the molar mass of the liquid. [R = 8.314 J K^-1 mol^-1.]
  15. 1(e)(ii)1 mark· CAPE Chemistry Unit 1 · May/June 2025 · Paper 2Suggest which measurement used in the calculation of the molar mass is subject to the greatest error.
  16. 1(c)(i)1 mark· Chemistry · Unit 1 Q1 1(c)(i)Under which of the following sets of conditions, I, II or III, would the deviation be LEAST?
  17. 1(c)(ii)2 marks· Chemistry · Unit 1 Q1 1(c)(ii)State TWO assumptions of the kinetic theory as it pertains to ideal gases.
  18. 1(c)(iii)1 mark· Chemistry · Unit 1 Q1 1(c)(iii)Which assumption of the kinetic theory as it pertains to ideal gases would MOST likely account for your answer to (c) (i) above?
  19. 2(a)5 marks· Chemistry · Unit 1 Q2 2(a)Present the data provided above, as well as the temperature T(K), in a tabular format.
  20. 2(b)4 marks· Chemistry · Unit 1 Q2 2(b)On the grid provided below, plot a graph of volume of gas V(dm³) against temperature T(K), circling the plotted points.
  21. 2(c)(i)1 mark· Chemistry · Unit 1 Q2 2(c)(i)From your graph, deduce the volume occupied by the gas at a temperature of 373 K.
  22. 2(c)(ii)1 mark· Chemistry · Unit 1 Q2 2(c)(ii)From your graph, deduce the relationship between the volume (V) of the gas and the temperature (T).
  23. 2(d)1 mark· Chemistry · Unit 1 Q2 2(d)Write an equation to represent the relationship in (c) (ii).
  24. 2(e)1 mark· Chemistry · Unit 1 Q2 2(e)State the significance of the gradient in relation to the equation in (d).
  25. 2(f)3 marks· Chemistry · Unit 1 Q2 2(f)Calculate the value of the gradient of the graph, stating the relevant units.
  26. 4(a)3 marks· Chemistry · Unit 1 Q4 4(a)List THREE assumptions made about gas molecules in the kinetic theory.
  27. 4(a)4 marks· Chemistry · Unit 1 Q4 4(a)State the FOUR basic assumptions of the kinetic theory with reference to an ideal gas.
  28. 4(a)(i)2 marks· Chemistry · Unit 1 Q4 4(a)(i)State TWO properties of an ideal gas.
  29. 4(a)(ii)5 marks· Chemistry · Unit 1 Q4 4(a)(ii)Use the ideal gas equation to calculate the number of moles of gas produced in an air bag of volume 40.0 dm³ at a pressure of 2.0 x 10² KPa and a temperature of 30°C.
  30. 4(b)3 marks· Chemistry · Unit 1 Q4 4(b)Calculate the relative molecular mass of Z.
  31. 4(b)(i)2 marks· Chemistry · Unit 1 Q4 4(b)(i)State the TWO conditions under which the ideal gas equation adequately describes the behaviour of gases.
  32. 4(b)(i)3 marks· Chemistry · Unit 1 Q4 4(b)(i)State THREE assumptions of the kinetic theory as it pertains to ideal gases.
  33. 4(b)(i)2 marks· Chemistry · Unit 1 Q4 4(b)(i)State the conditions of temperature and pressure under which gases deviate from ideality.
  34. 4(b)(ii)3 marks· Chemistry · Unit 1 Q4 4(b)(ii)Carefully explain the deviations produced by real gases.
  35. 4(b)(ii)1 mark· Chemistry · Unit 1 Q4 4(b)(ii)Under what conditions of temperature and pressure will a real gas deviate from ideal gas behaviour?
  36. 4(b)(ii)2 marks· Chemistry · Unit 1 Q4 4(b)(ii)Describe the property of the gas molecules that is responsible for the deviation from ideality.
  37. 4(c)1 mark· Chemistry · Unit 1 Q4 4(c)Sketch a graph of volume (V) against the inverse of pressure (1/P) for a constant number of moles of an ideal gas at constant temperature.
  38. 4(c)4 marks· Chemistry · Unit 1 Q4 4(c)Calculate the relative molecular mass (Mᵣ) of the gas.
  39. 4(d)(i)4 marks· Chemistry · Unit 1 Q4 4(d)(i)An organic compound, Y, contains carbon, hydrogen and oxygen only. When vapourised at 101 kPa and 373 K, 1.00 g of Y occupies a volume of 667 cm³. Calculate the mass in grams of 1 mole of Y. (Gas constant, R = 8.314 J…
  40. 8(c)2 marks· Chemistry · Unit 1 Q8 8(c)Use the calibration curve in Figure 2 to determine the density of a block of metal that displaces a volume of 4.0 cm³.
  41. 9(a)3 marks· Chemistry · Unit 1 Q9 9(a)State which type of distillation is BEST suited for separating EACH compound from a mixture of the compound in water.
  42. 9(b)2 marks· Chemistry · Unit 1 Q9 9(b)Even though air consists of 78% N₂ and 21% O₂, these gases do not contribute to global warming. Explain this phenomenon.
  43. 9(b)(i)5 marks· Chemistry · Unit 1 Q9 9(b)(i)Construct the b.p / composition curve for the mixture of Z in water. Include in your diagram all data given, and label the two phases present.
  44. 9(b)(ii)8 marks· Chemistry · Unit 1 Q9 9(b)(ii)Use the diagram drawn in (b) (i) to explain why this mixture cannot be completely separated using fractional distillation.
  45. 9(c)(i)2 marks· Chemistry · Unit 1 Q9 9(c)(i)Suggest ONE advantage and ONE disadvantage of carrying out the distillation under increased pressure
  46. 9(c)(ii)2 marks· Chemistry · Unit 1 Q9 9(c)(ii)Suggest TWO industries that utilize the process.
  47. 131 mark· Chemistry · Unit 1 Q13 13A gas in a syringe occupies a volume of 50 cm³ and has a pressure of 0.49 atmospheres. What is the pressure of the gas if the plunger of the syringe is pushed in, reducing the volume of the gas to 20 cm³? (1 atmosphere…
  48. 141 mark· Chemistry · Unit 1 Q14 14When magnesium metal reacts with dilute nitric acid, 0.512 moles of hydrogen gas is produced. The volume that this gas would occupy at 298 K and 196 KPa (R = 8.31 J K⁻¹ mol⁻¹) is

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