Advertisements
Advertisements
प्रश्न
Vapour is injected at a uniform rate in a closed vessel which was initially evacuated. The pressure in the vessel
पर्याय
increases continuously
decreases continuously
first increases and then decreases
first increases and then becomes constant.
उत्तर
first increases and then becomes constant.
As the vapour is injected, the pressure of the chamber increases. But when the pressure becomes equal to the saturated vapour pressure, it condenses. So, if more vapour is injected beyond the saturated vapour pressure, the vapour will condense and thus the vapour pressure will be constant.
APPEARS IN
संबंधित प्रश्न
Show that R.M.S. velocity of gas molecules is directly proportional to square root of its absolute temperature.
Prove that root mean square velocity of gas molecule is directly proportional to the square root of its absolute temperature.
At what temperature will average kinetic energy of gas be exactly half of its value at N.T.P.?
If the total kinetic energy per unit volume of gas enclosed in a container is E, the pressure exerted by the gas is
(A) E
(B) 3/2 E
(C) `sqrt3E`
(D) 2/3E
State any four assumptions of kinetic theory of gases.
The quantity \[\frac{pV}{kT}\] represents
There is some liquid in a closed bottle. The amount of liquid is continuously decreasing. The vapour in the remaining part
There is some liquid in a closed bottle. The amount of liquid remains constant as time passes. The vapour in the remaining part
A vessel A has volume V and a vessel B has volume 2V. Both contain some water which has a constant volume. The pressure in the space above water is pa for vessel A and pbfor vessel B.
Figure shows a cylindrical tube of length 30 cm which is partitioned by a tight-fitting separator. The separator is very weakly conducting and can freely slide along the tube. Ideal gases are filled in the two parts of the vessel. In the beginning, the temperatures in the parts A and B are 400 K and 100 K respectively. The separator slides to a momentary equilibrium position shown in the figure. Find the final equilibrium position of the separator, reached after a long time.
Figure shows a large closed cylindrical tank containing water. Initially the air trapped above the water surface has a height h0 and pressure 2p0 where p0 is the atmospheric pressure. There is a hole in the wall of the tank at a depth h1 below the top from which water comes out. A long vertical tube is connected as shown. (a) Find the height h2 of the water in the long tube above the top initially. (b) Find the speed with which water comes out of the hole. (c) Find the height of the water in the long tube above the top when the water stops coming out of the hole.
If the mass of all molecules of a gas is halved and their speeds doubled, then the ratio of initial and final pressures is ________.
Which of the following options may be the correct estimate of the mean free path of gas particles? [n: Number of gas particle per unit volume, d: diameter]
