NEET UG PHYSICS MCQ: KINETIC THEORY OF GASES

1 Easy

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Application +4 | -1

The root mean square speed of smoke particles of mass

5 \times 10^{-17} \mathrm{~kg}

in their Brownian motion in air at NTP is approximately. [Given

k=1.38 \times 10^{-23} \mathrm{JK}^{-1}

]

View answer and explanation

Correct option: C

15 \mathrm{~mm} \mathrm{~s}{ }^{-1}

Option C (

15 \mathrm{~mm} \mathrm{~s}{ }^{-1}

) is correct because it's calculated using the formula for root mean square speed,

v_{rms} = \sqrt{\frac{3kT}{m}}

, with appropriate substitutions.

More Questions from KINETIC THEORY OF GASES

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\left( U \right)

\left( p \right)

\left( V \right)

U = 3pV + 4

V

A

x

K

T_0

P_0

T_{\mathrm{s}}

\frac{T_0}{T_0}\left[T_s-\left(\mathrm{T}_s-T_0\right)_e \frac{-Z k A}{3 x R} t\right]

z

\left(1+\frac{\gamma}{28}\right)^{\frac{1}{2}} v,

v

\gamma

\left(\pi=\frac{22}{7}\right)

p

V

\frac{{dp}}{{dV}}\, = \, - ap.

p\, = \,{p_0}

V\, = \,0

R