The process in which gas molecules intermingle as a result of random motion is known as ___________.
effusion
filtration
distillation
diffusion
The process in which gas molecules intermingle as a result of random motion is known as diffusion.
Read the following passage and answer the question at the end of it.
The mixing of different gases by random molecular motion and with frequent collisions is called diffusion. A similar process in which gas molecules escape without collision through a tiny hole into a vacuum is called effusion.
1. Select the correct alternate(s).
(a) All gases spontaneously diffuse into one another when they are brought into contact.
(b) Diffusion into a vacuum will take place much more rapidly than diffusion into another gas.
(c) Both the rate of diffusion of a gas and its rate of effusion depend on its molar mass.
(d)All of the above statements are correct
2. The stopcock of the bulbs X (containing NH3 and Y (containing HCl) are opened simultaneously. White fumes of NH4Cl are formed at point B. If AB = 36.5 cm, then BC is approximately
When a protein channel helps the diffusion of substances across a cell membrane, the process is known as ___.