PHYSICS-Kinetic Theory of Gases Questions and Answers
PHYSICS-Kinetic Theory of Gases
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20 questions
1. What is the relationship between pressure and volume of a gas at constant temperature according to Boyle's law?
- Directly proportional
- Inversely proportional
- No relationship
- Exponentially related
2. Which of the following is NOT an assumption of the kinetic theory of gases?
- Molecules are in random motion
- Molecules have negligible volume
- Molecules exert no forces on each other
- Molecules have zero mass
3. What happens to the average kinetic energy of gas molecules when temperature is doubled?
- Doubles
- Halves
- Quadruples
- Remains same
4. At constant volume, pressure of a gas is proportional to:
- Volume
- Temperature
- Number of molecules
- Density
5. The root mean square speed of gas molecules depends on:
- Pressure only
- Volume only
- Temperature and molecular mass
- Pressure and volume
6. Which gas law combines Boyle's, Charles' and Gay-Lussac's laws?
- Avogadro's law
- Ideal gas equation
- Van der Waals equation
- Dalton's law
7. What is the value of universal gas constant R?
- 0.0821 L·atm/mol·K
- 1.987 cal/mol·K
- 8.314 J/mol·K
- 62.36 L·torr/mol·K
8. At absolute zero temperature, what happens to gas molecules?
- They move fastest
- Their volume becomes zero
- Their motion ceases
- They become liquid
9. The average kinetic energy of gas molecules is directly proportional to:
- Volume
- Pressure
- Absolute temperature
- Number of molecules
10. Which of the following has the same RMS speed at same temperature?
- O₂ and N₂
- H₂ and He
- CO₂ and SO₂
- N₂ and CO