Download App

STD 11 - 12. kinetic theory of gases — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 12. kinetic theory of gases4 Marks
MCQ
The absolute temperature of a gas is determined by
  • A
    The average momentum of the molecules
  • B
    The velocity of sound in the gas
  • C
    The number of molecules in the gas
  • ✓
    The mean square velocity of the molecules
✓

Answer

Correct option: D.
The mean square velocity of the molecules
d
The velocity of sound in a gas is given by:

$v _{\text {sound }}=\sqrt{\frac{\gamma RT }{ M }}$

$v _{\text {mean square }}= v _{ RMS }^{2}=\frac{3 RT }{ M }$

Hence, both mean square velocity and velocity of sound are functions of temperature.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Increase in length of a wire is $1\, mm$ when suspended by a weight. If the same weight is suspended on a wire of double its length and double its radius, the increase in length will be  ........ $mm$
→
A galvanometer can be used as a voltmeter by connecting a
→
Which one of the following nuclear reactions is a source of energy in the sun
→
If the current is doubled, the deflection is also doubled in
→
Assertion: The specific charge of positive rays is not constant.
Reason: The mass of ions varies with speed.
→
A star initially has $10^{40}$ deuterons. It produces energy via the processes, and ${ }_1 H ^2+$ ${ }_1 H ^3 \rightarrow{ }_1 H ^3+p$. If the average power radiated by the star is $10^{16} W$, the deuteron supply of the star is exhausted in a time of the order of:-
The masses of the nuclei are as follows:
$\begin{array}{l}
M\left(H^2\right)=2.014 amu ; \\
M\left(H^2\right)=1.007 amu ; M(n)=1.008 amu ; M\left(He^4\right)=4.001 amu
\end{array}$
→
Students $A, B$ and $C$ measure the length of a room using $25 \,m$ long measuring tape of least count $0.5 \,cm$, meter-scale of least count $0.1 \,cm$ and a foot-scale of least count $0.05 \,cm$, respectively. If the specified length of the room is $9.5 \,m$, then which of the following students will report the lowest relative error in the measured length?
→
The amplitude and the time period in a $S.H.M.$ is $0.5 \,cm$ and $0.4 \,sec$ respectively. If the initial phase is $\pi /2$ radian, then the equation of $S.H.M.$ will be
→
A round body is given translational velocity and released on a surface that has friction. Then
→
A diode detector is used to detect and amplitude modulated wave of $60 \%$ modulation by using a condenser of capacity $250\, pF$ in parallel with a load resistance $100\, k \Omega$. Find the maximum modulated frequency which could be detected by it,
→