A-LevelPhysicsThermodynamicsFeb/Mar 2021Paper 1 Q161 Mark
A gas is contained in a cylinder by a movable piston. [Figure 16.1] The cylinder has a circular cross-section of diameter 20.0 cm. The pressure of the gas is 102 Pa and the piston is initially 30.0 cm from the base of the cylinder. The gas is heated causing the piston to move up so that it is 35.0 cm from the base. The pressure of the gas remains constant. How much work does the gas do in moving the piston?
A0.160 J
B0.641 J
C1.12 J
D4.49 J
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The correct answer is A. This question tests the candidate's understanding of thermodynamics within the Physicssyllabus. The examiner's mark scheme requires...
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