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 [...]
Imbibition is a type of diffusion by which movement of water takes place along a diffusion gradient. Due to this process certain dried and half-dried matters absorb water. Such substances (e.g., fibres, wood pieces, proteins and sponges) are called adsorbants. An adsorbant is required for the imbibition to occur. The cell wall and the protoplasm also absorb water by the [...]
The upcoming discussion will update you about the difference between diffusion and osmosis. Difference # Diffusion: 1. Diffusion can occur in any medium. 2. The diffusing molecules may be solids, liquids or gases. 3. Semipermeable membrane is not required. 4. It is dependent upon the free energy of the molecules of diffusing substance only; presence of other substances in the [...]