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2 marksSpecific Latent Heat, l

CSEC Physics · May/June 2019 · Paper 2 · Question 3(b)

A substance with a freezing point of 80 °C was cooled from 90 °C to a total solid at its freezing point. Figure 4 provides axes for a cooling curve.

Sketch a graph on Figure 4 to represent the statement above.

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Other parts of this question

  1. 3(a)(i)Define the term 'heat capacity'.[2 marks]
  2. 3(a)(ii)Define the term 'specific latent heat of vaporization'.[3 marks]
  3. 3(c)(i)Calculate the amount of energy needed to heat the water from 30 °C to 100 °C.[4 marks]
  4. 3(c)(ii)Calculate the amount of energy needed to convert the water at 100 °C to steam at 100 °C.[3 marks]
  5. 3(c)(iii)Calculate the amount of energy needed to heat the water from 30 °C to steam at 100 °C.[1 mark]

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