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3.3 Particle model and pressure

3.3 Particle model and pressure

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Question 1

A student trapped a sample of air in a sealed, graduated syringe to investigate the connection between pressure and volume.

One of the student's measurements is given below:

  • pressure (p1)=1.2×105 Pa\text{pressure } (p_1) = 1.2 \times 10^5 \text{ Pa}pressure (p1​)=1.2×105 Pa
  • volume (V1)=15.0 cm3\text{volume } (V_1) = 15.0 \text{ cm}^3volume (V1​)=15.0 cm3
a.

Calculate the volume of the gas when the plunger is pushed in slowly to increase the pressure to

2.0×105 Pa 2.0 \times 10^5 \text{ Pa} 2.0×105 Pa

, assuming the temperature remains constant.

[3]
b.

Explain why pushing the plunger in very quickly would cause the temperature of the gas to increase.

[3]
Markscheme

3.3 Particle model and pressure Questions

  1. GCSE
  2. /Physics
  3. /3.3 Particle model and pressure

8 exam-style questions on AQA GCSE Physics 3.3 Particle model and pressure, covering 3.3.1 Particle motion in gases, 3.3.2 Pressure in gases, and 3.3.3 Increasing the pressure of a gas (HT only). Each one has a worked solution and a mark scheme showing where the marks go.

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