Diffusion of solid in liquid pdf

By using our site, you agree to our collection of information through the use of cookies. To learn more, view our Privacy Policy. Log In Sign Up. Download Free PDF. Aryan Jain. Download PDF. A short summary of this paper. This phenomenon is known as diffusion. Diffusion takes place very rapidly in case of gases, to a lesser extent in case of liquids, and not at all in the case of solids.

If a solid is kept in contact with excess of solvent in which it is soluble, some portion of the solid gets BS dissolved. This process is known as dissolution of a solid in liquid, and it takes place due to the diffusion of solid particles into liquid medium. Molecules of solute are in constant random motion iC due to the collision between molecules of solute and that of the solvent.

It is this physical interaction between solute-solvent particles that leads to diffusion. Thus, the speed of particles also increases, which in turn increases the rate of diffusion. This is because the particles become less mobile in the solvent. It describes the constant movement of particles in all liquids and gases. These particles move in all directions bumping into each other. Diffusion may be also referred as the process by which molecules intermingle as a result of their kinetic energy of random motion.

The diffusion process continues until a homogenous solution is obtained. The diffusion of solute into solvent is, in fact, a bilateral process. The solvent molecules moving down into the solution. Diffusion takes place very rapidly in case of gases, to a lesser extent in case of liquids, and not at all in the case of solids.

However, diffusion of solids in liquids does take place, albeit at a very slow rate. If a solid is kept in contact with excess of solvent in which it is soluble, some portion of the solid gets dissolved. This process is known as dissolution of a solid in liquid, and it takes place due to the diffusion of solid particles into liquid medium. Molecules of solute are in constant random motion due to the collision between molecules of solute and that of the solvent.

Also as the temperature is raised, kinetic energy of molecules increases which thereby increases the number of collisions. Particles of different substances move at different rates e. The speed of the movement of solid particles depends upon a Temperature b Size of the particles c Mass of the particle. Thus, the speed of particles also increases, which in turn increases the rate of diffusion.

This is because the particles become less mobile in the solvent.