In this article we will discuss about:- 1. Meaning of Diffusion 2. Diffusion Pressure 3. Factors 4. Importance. Meaning of Diffusion: The tendency on the part of molecules, atoms, ions, etc., of gases, liquids and solids to get evenly distributed throughout the available space on account of their random kinetic motion is called diffusion. Random kinetic motion of particles is [...]
Object: To demonstrate the phenomenon of diffusion. Requirements: Beaker, water, copper sulphate crystals. Method: Take a clean beaker and fill it completely with water. Place a big crystal of copper sulphate on one side of the beaker (Fig. 1). Observations: After some time, crystal of copper sulphate disappears and its particles get equally distributed throughout the water. Results: Molecules of [...]
If we keep hydrogen sulphide gas (H2S) exposed in any comer of the room, after a very short time the whole room is filled up with bad odour of the gas. In fact, this happens because the molecules of hydrogen sulphide gas gradually spread in the whole room. In other words, it can be said that the molecules of the [...]