DP Physics (first assessment 2025)

Question EXE.2.HL.TZ0.ii

Date	Example questions Example questions	Marks available	[Maximum mark: 3]	Reference code	EXE.2.HL.TZ0.ii
Level	HL	Paper	2	Time zone	TZ0
Command term	Calculate	Question number	ii	Adapted from	N/A

ii.

[Maximum mark: 3]

EXE.2.HL.TZ0.ii

The working gas of the turbine undergoes a cyclic change that can be modelled as the cycle ABCDA shown in the pressure-volume diagram.

The cycle consists of an isobaric expansion AB, adiabatic expansion BC, isobaric compression CD and adiabatic compression DA. The cycle is drawn for a quantity of 1.0 mol of monatomic ideal gas.

Calculate the maximum temperature of the gas during the cycle.

[3]

Markscheme

Correct read offs of pressure and volume at B ✓

$8.0 \times 10^{6} \times 1.6 \times 10^{- 3} = 1.0 \times 8.31 \times T$ ✓

$T = 1500$ «K» ✓

Syllabus sections

B. The particulate nature of matter

B. The particulate nature of matter » B.3 Gas laws

Question EXE.2.HL.TZ0.ii

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