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14.3 Gas pressure and temperature

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Question 38
H

A trapped gas occupies 32 cm3. It expands at constant temperature to 48 cm3, and its pressure decreases by 60 kPa.

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

What was the initial pressure?

[1]
A

90 kPa90\,\mathrm{kPa}90kPa

B

180 kPa180\,\mathrm{kPa}180kPa

C

120 kPa120\,\mathrm{kPa}120kPa

D

240 kPa240\,\mathrm{kPa}240kPa

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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