Diffusion and factors Effecting on Diffusion | ch#5 | 9th Class chemistry скачать в хорошем качестве

Diffusion and factors Effecting on Diffusion | ch#5 | 9th Class chemistry

#9thclasschemistry #mpluschemisty 9th class chemistry online chemistry lecture 9th class 9th class chemistry lecture class 9 chemistry matric part 1 chemistry online lecture of chemistry 9th class physical states of matter in class 9 chemistry class 9th chemistry lecture series class 9 chemistry 9th class chemistry chapter 5 5.3.5 Diffusion The liquid molecules are always in a state of continuous motion. They move from higher concentration to lower concentration. They mix up with the molecules of other liquids, so that they form a homogeneous mixture. For example, when a few drops of ink are added in a beaker of water, ink molecules move around and after a while spread in whole of the beaker. Thus diffusion has taken place. Liquids diffuse like gases but the rate of diffusion of liquid is very slow. The diffusion of liquid depends upon the following factors. i. Intermolecular forces: Liquids having weak intermolecular forces diffuse faster than those having strong intermolecular forces. ii. Size of molecules: Big sized molecules diffuse slowly. For example, honey diffuses slowly in water than that of alcohol in water. iii. Shapes of molecules: Regular shaped molecules diffuse faster than irregular shaped molecules because they can easily slip over and move faster. iv. Temperature: Diffusion increases by increasing temperature because at high temperature the intermolecular forces become weak due to high kinetic energy of the molecules.