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IB Physics HL B 4 2 Hl Gas Work Questions

Analyse HL gas-work questions with P–V diagrams, identifying work done by or on a gas and calculating work from pressure–volume changes and enclosed cycle areas.

Syllabus
First assessment 2025
Course
Physics HL
Level
HL

Exam points

  • Calculate signed work for a constant-pressure expansion or compression using W=PΔV and pressure–volume data.
  • Determine work from the area under a PV path or inside a cycle, including estimates from graph scales and false origins.
  • Compare expansion and compression paths, including isothermal and adiabatic curves, to infer the sign and direction of net work in a cycle.

Learn this topic

Study B.4.2 (HL)—Gas work conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Physics HL B 4 2 Hl Gas Work Questions question 1

[Maximum number: 3]

This question is in two parts

Estimate the total work done in the cycle.

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