JEE PHYSICS MCQ: KINETIC THEORY OF GASES

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At what temperature the rms velocity of helium molecules will be equal to that of hydrogen molecules at NTP?

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Correct option: C

273

^ \circ C

Option C (273

^ \circ C

) is correct because it is the temperature at which the rms velocity of helium molecules equals that of hydrogen molecules at NTP, calculated using the rms velocity formula.

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