DP Physics (first assessment 2025)

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Question 23M.2.HL.TZ2.9b

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Date May 2023 Marks available [Maximum mark: 2] Reference code 23M.2.HL.TZ2.9b
Level HL Paper 2 Time zone TZ2
Command term Sketch Question number b Adapted from N/A
b.
[Maximum mark: 2]
23M.2.HL.TZ2.9b

The gas now undergoes adiabatic compression BC until it returns to the initial volume. To complete the cycle, the gas returns to A via the isovolumetric process CA.

(b)

Sketch, on the pV diagram, the remaining two processes BC and CA that the gas undergoes.

[2]

Markscheme

concave curved line from B to locate C with a higher pressure than A ✓

vertical line joining C to A ✓

 

Allow ECF from MP1 i.e., award [1] for first process locating C at a lower pressure than A, then vertical line to A.

Arrows on the processes are not needed.

Point C need not be labelled.

Syllabus sections