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JEE PHYSICS MCQ: KINETIC THEORY OF GASES

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The root mean square speed of molecules of nitrogen gas at 27∘C27^{\circ} \mathrm{C} is approximately: (Given mass of a nitrogen molecule =4.6×10−26 kg=4.6 \times 10^{-26} \mathrm{~kg} and take Boltzmann constant kB=1.4×10−23JK−1\mathrm{k}_{\mathrm{B}}=1.4 \times 10^{-23} \mathrm{JK}^{-1} )
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Correct option: D
523 m/s523 \mathrm{~m} / \mathrm{s}
Option D (523 m/s) is correct because the RMS speed is calculated using the formula Vrms = 3kT/m\sqrt{{3kT/m}}.

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 csc_s is the velocity of sound in air and cc is the rms velocity, then Four particles have velocities 1,0,2,3 m/s1,0,2,3 \mathrm{~m} / \mathrm{s}. The root mean square of the particles is (in m/s\mathrm{m} / \mathrm{s} ) The translational degrees of freedom (ft)(f_t) and rotational degrees of freedom (fr)(f_r) of CH4{CH}_4 molecule are: On any planet, the presence of atmosphere implies (Crms={C_{rms}} == root mean square velocity of molecules and Ve={V_e} = escape velocity) At a given temperature, the pressure of an ideal gas of density ρ\rho is proportional to
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