Thermal Expansion of Gases

Try these questions

5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.

1. 1. Why do gases expand much more than solids and liquids for the same rise in temperature?

   • A. Gas particles have negligible forces of attraction between them
   • B. Gas particles are much larger than solid particles
   • C. Gas particles become heavier when heated
   • D. Gas particles stop moving when heated

2. 2. A balloon holds 500 cm^3 of air at 250 K. It is warmed to 350 K at constant pressure. What is its new volume?

   Type your answer (in cm^3) in the lesson.

3. 3. Which gas law states that the volume of a fixed mass of gas is directly proportional to its absolute temperature at constant pressure?

   Type your answer in the lesson.

4. 4. A sealed aerosol can is left in a car in strong sunshine. Which statement best explains why it may burst?

   • A. The gas particles grow larger, so the can becomes too small
   • B. Faster gas particles hit the walls more often and harder, and the rigid can cannot expand, so pressure rises
   • C. The gas particles slow down and stick to the walls
   • D. The gas particles lose mass, so the pressure rises

5. 5. A matatu driver stops after a long hot journey. Why should he check the tyre pressure only when the tyres are cold?

   • A. Hot tyres lose all their air
   • B. Heating makes the air inside the tyre contract, lowering its pressure
   • C. Friction and heating raise the air temperature in the tyre, giving a pressure reading higher than the true cold value
   • D. Cold tyres have a larger volume than hot tyres

More in Temperature and Thermal Expansion

• ▸Thermal Expansion in Solids
• ▸Engineering Applications and Consequences of Solid Expansion
• ▸Thermal Expansion of Liquids
• ▸Anomalous Expansion of Water
• ▸Thermal Expansion in Matter
• ▸Revision and Practical Assessment of Thermal Phenomena
• ▸Introduction to Moments and Turning Effects
• ▸The Principle of Moments

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