A large flask contains air at 27,^oC . In order to expel half mass of air from flask, flas

English

Gujarati

Hindi

12.Kinetic Theory of Gases

normal

A large flask contains air at $27\,^oC$. In order to expel half the mass of air from the flask, the flask should be heated upto what temperature ....... $^oC$

A

$127$

B

$327 $

C

$227$

D

$183$

Solution

Pressure and volume are constant

$\mu \mathrm{T}=$ constant

$\mu_{1} \mathrm{T}_{1}=\mu_{2} \mathrm{T}_{2}$

$\Rightarrow \mu(300)=\left(\frac{\mathrm{u}}{2}\right) \mathrm{T}_{2}$

$\mathrm{T}_{2}=600 \mathrm{K}=327^{\circ} \mathrm{C}$

Standard 11

Physics

Share

Similar Questions

A mixture of $2\, moles$ of helium gas (atomic mass $= 4\, amu$) and $1\, mole$ of argon gas (atomic mass $= 40\, amu$) is kept at $300\, K$ in a container. The ratio of the $r.m.s.$ speeds $\left( {\frac{{{v_{rms\,}}{\rm{(helium)}}\,}}{{{v_{rms}}\,{\rm{(argon)}}}}} \right)$ is

normal

At temperature $T, N$ molecules of gas A each having mass $m$ and at the same temperature $2N$ molecules of gas $B$ each having mass $2\,m$ are filled in a container. The mean sqaure velocity of molecules of gas $B$ is $v^2$ and mean square of $x$ component of velocity of molecules of gas$ A$ is $w^2$. The ratio of $w^2/v^2$ is :

normal

A gaseous mixture consists of $16\ g$ of helium and $16\ g$ of oxygen. The ratio $\frac{{{C_p}}}{{{C_v}}}$ of the mixture is

normal

If a gas has $n$ degrees of freedom ratio of specific heats of gas is

normal

The correct graph between pressure and density of a gas at constant temperature is

normal