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1 markThermal Properties

CAPE Physics Unit 1 · May/June 2025 · Paper 2 · Question 3(f)(i)

When all the ice has melted, the final temperature of the mixture is T.

Write an expression for the heat gained by the melted ice in warming up to the final temperature, T.

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Other parts of this question

  1. 3(a)Complete Table 3 to state the thermometric property and ONE use for both a mercury-in-glass thermometer and a constant-volume gas thermometer.[4 marks]
  2. 3(b)Distinguish between heat transfer by conduction and heat transfer by convection.[2 marks]
  3. 3(c)(i)Define specific heat capacity.[2 marks]
  4. 3(c)(ii)Define specific latent heat of fusion.[2 marks]
  5. 3(d)Assuming a human has 0.03 m thickness of body fat and skin with a total surface area of 1.7 m², calculate the heat reaching the skin in half-hour if the body…[4 marks]
  6. 3(e)(i)Calculate the heat gained by the ice from the punch in warming up to the melting point.[2 marks]
  7. 3(e)(ii)Calculate the heat gained by the ice in changing phase from a solid to a liquid.[2 marks]
  8. 3(f)(ii)Write an expression for the total amount of heat lost by the punch.[1 mark]
  9. 3(f)(iii)Hence, determine the final temperature, T, of the mixture.[3 marks]
  10. 3(g)(i)Plot a graph of saturated vapour pressure, P, versus temperature, T, on the grid provided in Figure 3, and draw a smooth curve through the points.[4 marks]
  11. 3(g)(ii)Use the curve in (g)(i) to determine the relative humidity on a day when the temperature is 32 °C and the saturated vapour pressure of water in the air is 2.0…[3 marks]

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