DP Physics (first assessment 2025)

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Question EXE.1A.HL.TZ0.18

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Date Example questions Example questions Marks available [Maximum mark: 1] Reference code EXE.1A.HL.TZ0.18
Level HL Paper 1A Time zone TZ0
Command term Question number 18 Adapted from N/A
18.
[Maximum mark: 1]
EXE.1A.HL.TZ0.18

An ideal gas expands isothermally. The work done by the gas is 100 J. What is the change in the internal energy of the gas?


A.  −100 J

B.  0

C.  +50 J

D.  +100 J

[1]

Markscheme

B

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