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IB Physics HL B 4 9 Hl Gas Processes Questions

Compare HL isothermal, isobaric, isochoric and adiabatic gas processes using P–V paths, work, internal energy, heat transfer and process definitions.

Syllabus
First assessment 2025
Course
Physics HL
Level
HL

Exam points

  • Calculate angular momentum using L = Iω and relate it to rotational motion.
  • Apply conservation of angular momentum when external resultant torque is negligible, using complete evidence.

IB Physics HL B 4 9 Hl Gas Processes Questions question 1

[Maximum number: 1]

This question is in two parts

A gas undergoes a thermodynamic cycle. The P-V diagram for the cycle is shown below.

Figure for Question IB Physics HL B 4 9 Hl Gas Processes Questions question 1 — IB Physics HL

In the changes of state B to C and D to A , the gas behaves as an ideal gas and the changes in state are adiabatic.

State what is meant by an adiabatic change of state.

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