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JEE PHYSICS MCQ: KINETIC THEORY OF GASES
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A cubical box with porous walls containing an equal number of and molecules is placed in a large evacuated chamber. The entire system is maintained at constant temperature The ratio of of molecules to that of the of molecules, found in the chamber outside the box after a short interval is
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Correct option: B
Option B () is correct because the ratio of RMS velocities is inversely proportional to the square root of the molar masses of the gases.
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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