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14.3 Gas pressure and temperature

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Question 4

During an air-quality survey at high altitude, a technician seals 3.0 litres3.0\,\mathrm{litres}3.0litres of air inside a flexible sampling bag when the pressure is 80 kPa. Before analysing the sample, the technician compresses the sealed bag until the pressure reaches 120 kPa. The temperature of the sample remains constant.

Use p1V1=p2V2p_1V_1=p_2V_2p1​V1​=p2​V2​.

What is the final volume?

[1]
A

4.5 litres4.5\,\mathrm{litres}4.5litres

B

1.5 litres1.5\,\mathrm{litres}1.5litres

C

2.0 litres2.0\,\mathrm{litres}2.0litres

D

3.0 litres3.0\,\mathrm{litres}3.0litres

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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