DP Physics (first assessment 2025)

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Question EXE.1A.HL.TZ0.22

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Date Example questions Example questions Marks available [Maximum mark: 1] Reference code EXE.1A.HL.TZ0.22
Level HL Paper 1A Time zone TZ0
Command term Question number 22 Adapted from N/A
22.
[Maximum mark: 1]
EXE.1A.HL.TZ0.22

Energy is transferred very slowly to ice of mass 0.050 kg at its melting point so that the ice melts completely. The melted water remains at 0 °C.

The specific latent heat of fusion of ice = 335 kJ kg−1

What is the entropy change of the ice?


A.  0.041 kJ k−1

B.  0.061 kJ k−1

C.  0.041 J k−1

D.  0.061 J k−1

[1]

Markscheme

B

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