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14.3 Gas pressure and temperature

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Question 2

A gas-analysis instrument measures a sample by allowing the gas in its bellows chamber to expand while a pressure gauge records the pressure. A narrow channel between the chamber and the gauge contains 6.0 cm3 of gas. The chamber initially contains gas at 150 kPa and has a volume of 34 cm3. It is expanded until the pressure is 100 kPa. The gas mass and temperature remain constant.

Use p1V1=p2V2p_1V_1=p_2V_2p1​V1​=p2​V2​. What is the final volume of the chamber?

[1]
A

60 cm360\,\mathrm{cm^3}60cm3

B

51 cm351\,\mathrm{cm^3}51cm3

C

66 cm366\,\mathrm{cm^3}66cm3

D

54 cm354\,\mathrm{cm^3}54cm3

Markscheme

14.3 Gas pressure and temperature Questions

  1. GCSE
  2. /Physics
  3. /14.3 Gas pressure and temperature

108 exam-style questions on Edexcel GCSE Physics 14.3 Gas pressure and temperature, covering 14.3.1 Gas pressure and particle motion, 14.3.2 Temperature and pressure at constant volume, 14.3.3 Absolute zero and the kelvin scale, 14.3.4 Compressing and expanding gases, 14.3.5 Volume and pressure at constant temperature, and 14.3.6 Doing work on a gas. Each one has a worked solution and a mark scheme showing where the marks go.

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