Kinetic theory and gas behaviour Quiz
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5 questions, one answer each
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1. What causes the pressure of a gas on the walls of its container?
- A. Collisions of the particles with the walls
- B. The weight of the gas
- C. The particles sticking to the walls
- D. The particles getting bigger
2. What is 27 °C in kelvin?
- A. 246 K
- B. 273 K
- C. 300 K
- D. 27 K
3. What is true of the particles of a gas at absolute zero?
- A. They turn into a liquid
- B. They stop existing
- C. The gas pressure doubles
- D. They have the least possible kinetic energy
4. A gas at 200 kPa and 50 cm³ is compressed to 25 cm³ at constant temperature. What is the new pressure?
- A. 100 kPa
- B. 400 kPa
- C. 200 kPa
- D. 800 kPa
5. A sealed rigid tin of gas is heated. Why does the pressure rise?
- A. The tin gets bigger
- B. The particles get heavier
- C. The particles move faster and hit the walls harder and more often
- D. There are more particles in the tin