B.3 Gas laws Quiz
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5 questions, one answer each
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1. A force of 60 N acts perpendicular to an area of 0.020 m². The pressure is:
- A. 1.2 Pa
- B. 3.0 × 10³ Pa
- C. 3.3 × 10⁻⁴ Pa
- D. 60 Pa
2. A gas is heated at constant volume from 300 K to 450 K. Its pressure:
- A. increases by a factor of 1.5
- B. doubles
- C. stays the same
- D. increases by a factor of √1.5
3. Which is an assumption of the kinetic model of an ideal gas?
- A. Molecules attract each other strongly
- B. Collisions are elastic
- C. All molecules have the same speed
- D. Molecules occupy most of the container
4. The internal energy of 2.0 mol of an ideal monatomic gas at 300 K is about:
- A. 2.5 × 10³ J
- B. 5.0 × 10³ J
- C. 7.5 × 10³ J
- D. 1.5 × 10⁴ J
5. A real gas behaves least like an ideal gas at:
- A. high temperature and low pressure
- B. low density
- C. high pressure and low temperature
- D. any condition where it is a gas