PHYSICS-Kinetic Theory of Gases Questions and Answers

PHYSICS-Kinetic Theory of Gases

Showing 10 of 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
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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
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3. What happens to the average kinetic energy of gas molecules when temperature is doubled?
  • Doubles
  • Halves
  • Quadruples
  • Remains same
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4. At constant volume, pressure of a gas is proportional to:
  • Volume
  • Temperature
  • Number of molecules
  • Density
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5. The root mean square speed of gas molecules depends on:
  • Pressure only
  • Volume only
  • Temperature and molecular mass
  • Pressure and volume
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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
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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
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8. At absolute zero temperature, what happens to gas molecules?
  • They move fastest
  • Their volume becomes zero
  • Their motion ceases
  • They become liquid
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9. The average kinetic energy of gas molecules is directly proportional to:
  • Volume
  • Pressure
  • Absolute temperature
  • Number of molecules
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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
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