O-LevelPhysicsThermal Physics5054/11 · May/June 2011 · Q181 Mark

An ice pack is used to cool 0.25 kg of water. The specific heat capacity of water is 4.2 kJ/(kg°C). How much thermal energy (heat) must the ice pack extract from the water to reduce the water temperature by 15°C?

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A0.070 kJ

B1.1 kJ

C16 kJ

D250 kJ

✓ Correct answer

C: 16 kJ

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Topic: Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2011 Paper 1 Variant 1, question 18.

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