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JEE PHYSICS MCQ: KINETIC THEORY OF GASES
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Three vessels of equal capacity have gases at
the same temperature and pressure. The first
vessel contains helium (monoatomic), the
second contains fluorine (diatomic) and the
third contains sulfur hexafluoride (polyatomic).
The correct statement, among the following is:
the same temperature and pressure. The first
vessel contains helium (monoatomic), the
second contains fluorine (diatomic) and the
third contains sulfur hexafluoride (polyatomic).
The correct statement, among the following is:
View answer and explanation
Correct option: D
The root mean square speed of helium is
the largest
the largest
Option D (The root mean square speed of helium is the largest) is correct because RMS speed is inversely proportional to the square root of the molar mass, and helium has the smallest molar mass.
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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