Class 11 Physics · Chapter 6 · Test 1
Kinetic Theory and Gases
35 MCQs This test covers the assumptions and limitations of the kinetic theory, the ideal gas equation, the Boltzmann constant and real versus ideal gas behaviour. It also covers Boyle’s, Charles’ and Gay-Lussac’s laws with graphs and numericals, and thermal equilibrium.
35 questions · 30 min · 35 marks
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Sample questions
The first 5 of 35. Try each one, then tap to see the answer.
Question 1
According to the kinetic theory of gases, gas particles are in:
- AConstant random motion in straight lines
- BAt rest
- COrderly circular motion
- DVibration about fixed positions
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Answer: A
Gas particles move randomly in straight lines until they collide with each other or the walls.
Question 2
The volume of individual gas molecules compared with the container volume is assumed to be:
- AVery large
- BEqual to the container volume
- CNegligible
- DHalf the container volume
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Answer: C
Kinetic theory assumes molecular volume is negligible compared with the total volume of the gas.
Question 3
Collisions between gas molecules and with container walls are assumed to be:
- APerfectly inelastic
- BPerfectly elastic
- CPartially elastic
- DExplosive
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Answer: B
Collisions are perfectly elastic so there is no net loss of kinetic energy.
Question 4
Intermolecular forces between ideal gas particles are assumed to be:
- AStrongly attractive
- BStrongly repulsive
- CGravitational only
- DNegligible
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Answer: D
Kinetic theory assumes no attractive or repulsive forces act between gas particles except during collisions.
Question 5
The average kinetic energy of gas particles is directly proportional to:
- APressure
- BVolume
- CAbsolute temperature
- DNumber of moles only
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Answer: C
Average kinetic energy is proportional to the absolute temperature of the gas.
More tests in Heat and Thermodynamics
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