O-LevelPhysicsThermal Physics5054/11 · May/June 2017 · Q221 Mark

Some ice cubes are taken from a freezer and heated in a container. The readings of temperature and time are recorded on the graph. Which temperature is 0°C?

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APoint A (temperature above the plateau)

BPoint B (start of the plateau)

CPoint C (end of the plateau)

DPoint D (temperature below the plateau)

✓ Correct answer

C: Point C (end of the plateau)

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Topic: Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2017 Paper 1 Variant 1, question 22.

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