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JEE PHYSICS MCQ: KINETIC THEORY OF GASES

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Diatomic molecules like hydrogen have energies due to
bothtranslationalas well as rotational motion. From the
equation in kinetic theory

pV= \frac{2}{3}E, \, E

is

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Correct option: C

Only the translational part of the energy, because during
collisions with the wall, pressure related to change in
linear momentum

Option C (Only the translational part of the energy, because during collisions with the wall, pressure related to change in linear momentum) is correct because the pressure exerted on the walls of the container is due to the change in linear momentum of the molecules.

More Questions from KINETIC THEORY OF 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

c_s

is the velocity of sound in air and

c

is the rms velocity, then Four particles have velocities

1,0,2,3 \mathrm{~m} / \mathrm{s}

. The root mean square of the particles is (in

\mathrm{m} / \mathrm{s}

) The translational degrees of freedom

(f_t)

and rotational degrees of freedom

(f_r)

{CH}_4

molecule are: On any planet, the presence of atmosphere implies (

{C_{rms}} =

= root mean square velocity of molecules and

{V_e} =

escape velocity) At a given temperature, the pressure of an ideal gas of density

\rho

is proportional to