O-LevelPhysicsThermal Physics5054/11 · May/June 2022 · Q71 Mark
The initial pressure of a volume V₁ of a fixed mass of gas is p₁. The gas expands at a constant temperature until it has volume V₂ and pressure p₂. Which statement about the pressure and volume of the gas is not correct?
APressure is measured in N/m³.
BPressure multiplied by volume is a constant.
CPressure is directly proportional to 1/volume.
DThe ratio of V₁ to V₂ is equal to the ratio of p₂ to p₁.
✓ Correct answer
A: Pressure is measured in N/m³.
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