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JAMB Physics 1995 Question 24

Question 24

Change of State and Vapours

A quantity of ice at −10 °C is heated until the temperature of the heating vessel is 90 °C. Which of the following constants is NOT required to determine the quantity of heat supplied to the vessel?

  1. A.Specific heat capacity of ice
  2. B.Specific heat capacity of water
  3. C.Specific latent heat of fusion
  4. D.Specific latent heat of vaporization
Show the answer and explanation

Answer: D (Specific latent heat of vaporization)

Explanation

The ice warms to 0 °C, melts, and the water warms to 90 °C. It never boils, so the latent heat of vaporization is not needed.