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$Assertion$: The total translational kinetic energy of all the molecules of a given mass of an ideal gas is $1.5\, times$ the product of its pressure and its volume.
$Reason$ : The molecules of a gas collide with each other and the velocities of the molecules change due to the collision.
The $r.m.s.$ speed of the molecules of a gas in a vessel is $400$ $m{s^{ - 1}}$. If half of the gas leaks out, at constant temperature, the $r.m.s.$ speed of the remaining molecules will be ..... $ms^{-1}$
Nitrogen gas $N _2$ of mass $28 \,g$ is kept in a vessel at pressure of $10 \,atm$ and temperature $57^{\circ} C$. Due to leakage of $N _2$ gas its pressure falls to $5 \,atm$ and temperature to $27^{\circ} C$. The amount of $N _2$ gas leaked out is .......... $g$
A jar contains a gas and few drops of water at $T K.$ The pressure in the jar is $830 \,mm$ of mercury. The temperature of jar is reduced by $1\%.$ The saturated vapour pressure of water at the two temperatures are $30 \,mm$ and $ 25\, mm$ of mercury. Then the new pressure in the jar will be ..... $mm$ of $Hg$
A spherical bubble inside water has radius $R$. Take the pressure inside the bubble and the water pressure to be $p_0$. The bubble now gets compressed radially in an adiabatic manner so that its radius becomes $(R-a)$. For $a \ll R$ the magnitude of the work done in the process is given by $\left(4 \pi p_0 R a^2\right) X$, where $X$ is a constant and $\gamma=C_p / C_V=41 / 30$. The value of $X$ is. . . . . .
The average degree of freedom per molecule of a gas is $6$. The gas performs $25\ J$ work, while expanding at constant pressure. The heat absorbed by the gas is .... $J$
A cylindrical container of volume $4.0 \times 10^{-3} \,{m}^{3}$ contains one mole of hydrogen and two moles of carbon dioxide. Assume the temperature of the mixture is $400 \,{K}$ The pressure of the mixture of gases is:
[Take gas constant as $8.3\, {J} {mol}^{-1} {K}^{-1}$]
Two thermally insulated vessels $1$ and $2$ are filled with air at temperatures $({T_1},\,\,{T_2}),$ volume $({V_1},\,\,{V_2})$ and pressure $({P_1},\,\,{P_2})$ respectively. If the valve joining the two vessels is opened, the temperature inside the vessel at equilibrium will be
Let $\bar v , \bar v_{rms}$ and $v_p$ respectively denote the mean speed, root mean square speed and most probable speed of the molecules in an ideal monoatomic gas at absolute temperature $T$. The mass of the molecule is $m$. Then