O-LevelPhysicsThermal PhysicsOct/Nov 2025Paper 1 Q101 Mark
The pressure and volume of a sample of gas at constant temperature are measured and plotted on a graph. The pressure is decreased to 12.5 kPa. What is the new volume of this sample of gas?
A1.2 × 10⁻⁴ m³
B4.8 × 10⁻⁴ m³
C1.2 × 10⁻² m³
D4.8 × 10⁴ m³
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The correct answer is A. This question tests the candidate's understanding of thermal physics within the Physicssyllabus. The examiner's mark scheme requires...
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Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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