IB Physics HL B.3.4 Empirical gas laws Question Bank
Practise IB Physics HL B.3.4 by analysing multi-state ideal-gas processes, graph transformations and empirical limits of gas laws.
- Syllabus
- First assessment 2025
- Course
- Physics HL
- Level
- HL
Exam points
- Combine pV/T across several states to solve temperatures, pressures and volumes in compound processes.
- Evaluate gas-law graphs and empirical relationships, including constant-temperature and constant-pressure experiments.
B.3.4—Empirical gas laws question 1
The equipment shown in the diagram was used by a student to investigate the variation with volume, of the pressure p of air, at constant temperature. The air was trapped in a tube of constant cross-sectional area above a column of oil.
The pump forces oil to move up the tube decreasing the volume of the trapped air.
Outline how the results of this experiment are consistent with the ideal gas law at constant temperature.
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