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JEE PHYSICS MCQ: KINETIC THEORY OF GASES
1
Medium
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Analyzing
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Assertion: and of gaseous molecules is nearly of the order of velocity of sound.
Reason: The sound travels in air because of vibrational molecular motion.
Reason: The sound travels in air because of vibrational molecular motion.
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Correct option: B
If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
Option B is correct. Both the assertion and reason are true, but the reason doesn't explain why the speeds are of the same order.
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Assertion: The pressure exerted by an enclosed ideal gas does not depend on the shape of the container.
Reason: The pressure of an ideal gas depends on the number moles, temperature and volume of the enclosed If is the velocity of sound in air and is the rms velocity, then Four particles have velocities . The root mean square of the particles is (in ) The translational degrees of freedom and rotational degrees of freedom of molecule are: On any planet, the presence of atmosphere implies (= root mean square velocity of molecules and escape velocity) At a given temperature, the pressure of an ideal gas of density is proportional to
Reason: The pressure of an ideal gas depends on the number moles, temperature and volume of the enclosed If is the velocity of sound in air and is the rms velocity, then Four particles have velocities . The root mean square of the particles is (in ) The translational degrees of freedom and rotational degrees of freedom of molecule are: On any planet, the presence of atmosphere implies (= root mean square velocity of molecules and escape velocity) At a given temperature, the pressure of an ideal gas of density is proportional to