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JEE PHYSICS MCQ: KINETIC THEORY OF GASES
1
Medium
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Analyzing
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Assertion: In free expansion of an ideal gas, the entropy increases.
Reason: Entropy increases in all natural processes.
Reason: Entropy increases in all natural processes.
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Correct option: C
If assertion is true, but reason is false
Option B (If both assertion and reason are true but reason is not correct explanation of the assertion) is correct because entropy increases in free expansion, but not all natural processes increase entropy.
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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