EXplain differece between usage and principle of evaporation and chromatography.
EXplain differece between usage and principle of evaporation and chromatography.
EVAPORATTION:
We know that particles of matter are in continuous motion. Their motion is because of the kinetic energy possessed by these particles. At a given temperature, different particles have a different amount of kinetic energy. In liquids, a small fraction of particles present on the surface, having higher energy, break away from the force of attraction that binds them with other particles, and get converted into vapours.
The process of conversion of a liquid into its vapours at any temperature below its boiling point is known as evaporation.
Drying of wet clothes, drying of rain water from cement surfaces etc. takes place due to the evaporation of water.
CHROMATOGRAPHY:
Chromatography is a technique used to separate mixtures into its components. In this method, a drop of mixture to be separated is placed on a filter paper, and the paper is hanged in a jar, slightly dipping in the solvent, so that when solvent rises up in the paper (as the filter papers has pores in it which allow the movement of the solvent), it carries the components of the mixture alongwith it. Different substances move at different speeds which allows the mixture to separate in its components.
- Used by doctors, scientists for analysis, analysis of polluted air
Used to separate mixtures into their components, purify compounds, and also to test the purity of compounds
Two important classes − Adsorption chromatography and partition chromatography
EVAPORATTION:
We know that particles of matter are in continuous motion. Their motion is because of the kinetic energy possessed by these particles. At a given temperature, different particles have a different amount of kinetic energy. In liquids, a small fraction of particles present on the surface, having higher energy, break away from the force of attraction that binds them with other particles, and get converted into vapours.
The process of conversion of a liquid into its vapours at any temperature below its boiling point is known as evaporation.
Drying of wet clothes, drying of rain water from cement surfaces etc. takes place due to the evaporation of water.
CHROMATOGRAPHY:
Chromatography is a technique used to separate mixtures into its components. In this method, a drop of mixture to be separated is placed on a filter paper, and the paper is hanged in a jar, slightly dipping in the solvent, so that when solvent rises up in the paper (as the filter papers has pores in it which allow the movement of the solvent), it carries the components of the mixture alongwith it. Different substances move at different speeds which allows the mixture to separate in its components.
- Used by doctors, scientists for analysis, analysis of polluted air
Used to separate mixtures into their components, purify compounds, and also to test the purity of compounds
Two important classes − Adsorption chromatography and partition chromatography
