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Question 12

From Physics HL Paper 1A (May 2025, TZ2)

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  1. A cyclic process for an ideal gas is shown. The cycle has three stages: isovolumetric, adiabatic, and isothermal. Work is done on the gas during the isothermal stage.
PV diagram showing pressure vs volume for a cyclic process with three stages, including labeled stages Y and Z, relevant for identifying isothermal stage and cycle direction.
PV diagram showing pressure vs volume for a cyclic process with three stages, including labeled stages Y and Z, relevant for identifying isothermal stage and cycle direction.

Which stage is isothermal and what is the direction of the cyclic process?

Table presenting options for Question 12, pairing stages (Y or Z) with directions (Anti-clockwise or Clockwise) for the cyclic process.
Table presenting options for Question 12, pairing stages (Y or Z) with directions (Anti-clockwise or Clockwise) for the cyclic process.
StageDirection
A.YAnti-clockwise
B.ZAnti-clockwise
C.YClockwise
D.ZClockwise

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