A-Level UK (AQA, Edexcel, OCR) · Physics

Thermal physics

4 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 4 questions

  1. A sealed rigid container holds gas at 100 kPa and 300 K. What is the pressure when the temperature rises to 450 K?
  2. What is the mean kinetic energy of a molecule of an ideal gas at 300 K? (k = 1.38 x 10^-23 J/K)
  3. The specific latent heat of fusion of ice is 3.34 x 10^5 J/kg. How much energy is needed to melt 0.50 kg of ice at 0 degrees Celsius?
  4. A 1.0 x 10^-3 m3 container holds an ideal gas at 2.0 x 10^5 Pa and 300 K. How many molecules does it contain? (k = 1.38 x 10^-23 J/K)

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