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.

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.

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This question is in two parts

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

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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