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JEE PHYSICS MCQ: KINETIC THEORY OF GASES
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Understanding
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In a mixture of nitrogen and helium kept at
room temperature, as compared to helium
molecule, nitrogen molecule strikes the wall
(A) with greater average speed
(B) with smaller average speed
(C) with greater average kinetic energy
(D) with smaller average kinetic energy
Choose the correct statement.
room temperature, as compared to helium
molecule, nitrogen molecule strikes the wall
(A) with greater average speed
(B) with smaller average speed
(C) with greater average kinetic energy
(D) with smaller average kinetic energy
Choose the correct statement.
View answer and explanation
Correct option: D
B, C
Option B, C (B, D) is correct because at the same temperature, helium molecules have a greater average speed and smaller average kinetic energy compared to nitrogen molecules.
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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