A student investigated how the temperature of a lump of ice varied as the ice was heated. The student recorded the temperature until the ice melted and then the water produced boiled. The figure below shows the student’s results. The power output of the heater was constant. – 6036

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Q1.

A student investigated how the temperature of a lump of ice varied as the ice was heated. 

The student recorded the temperature until the ice melted and then the water produced boiled. 

The figure below shows the student’s results. 

The power output of the heater was constant.

When the water was boiling, 0.030 kg of water turned into steam. The energy transferred to the water was 69 kJ. Calculate the specific latent heat of vaporisation of water. Give the unit.

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Specific latent heat of vaporisation = _______________ Unit _________(5)