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1 markThermal Properties

CAPE Physics Unit 1 · 2001 · Paper 2 · Question 9(d)(ii)

Another student examines how temperature varies with time when a 4.0 kg block of ice is heated with a 400W immersion heater. The ice is initially at -10 °C, and all heat from the heater is transferred to the ice. Specific heat capacity of ice, Cᵢ = 2100 J kg⁻¹ K⁻¹.

Calculate the time taken to vaporize all the water at 100 °C.

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Other parts of this question

  1. 9(a)(i)Define heat capacity.[3 marks]
  2. 9(a)(ii)Define specific heat capacity.[1 mark]
  3. 9(a)(iii)Define specific latent heat of fusion.[1 mark]
  4. 9(b)With what physical change is EACH quantity defined in part (a) associated.[2 marks]
  5. 9(c)(i)Draw a diagram of an electrical circuit that is connected to the heater during the experiment.[6 marks]
  6. 9(c)(ii)Using the data in the table above, calculate the specific heat capacity of the block.[1 mark]
  7. 9(d)(i)Calculate the time taken to heat the ice from -10 °C to 100 °C.[6 marks]
  8. 9(e)Draw a graph, with labelled axes, to show how the temperature varies with time throughout the entire heating process.[3 marks]

More practice: the rest of this paper · more Thermal Properties questions · all CAPE Physics Unit 1 past papers