What is diffusion ?
Diffusion is translated from Latin as distribution or interaction.Diffusion is a very important concept of physics.The essence of the diffusion is some penetration into other molecular substances.In the process of mixing the leveling of both concentrations by volume occupied by them.The substance of the places with a higher concentration goes into place with a lower concentration, due to this, and there is concentration equalization.Having considered that such diffusion, go to the conditions that may have an impact on the rate of occurrence of this phenomenon.
Factors affecting the diffusion
To understand what determines the diffusion, consider the factors that affect it.
diffusion depends on temperature.The rate of diffusion will increase with increasing temperature, because the temperature increases will increase the velocity of the molecules, ie, molecules will quickly stir.Physical state of matter will also influence what determines the diffusion, namely, the rate of diffusion.Thermal diffusion depends on the type of molecules.For example, if a metallic object, the thermal diffusion is faster, as opposed to if the object was made of a synthetic material.Very slow diffusion occurs between solid materials.Diffusion is critical in nature and in human life.
To better understand what is diffusion, consider it on examples.The molecules of substances, regardless of their state of aggregation are constantly in motion.Consequently, diffusion occurs in the gases can take place in liquids, and solids.Diffusion is the mixing of gases.In the simplest case, this spreading odors.If put into the water some dye, then after a time the liquid will turn smoothly.If two metals are in contact, at the boundary between the mixing of the molecules.
Thus, diffusion is the mixing of molecules of the substance in their chaotic thermal motion.