What is Brownian motion?
The question asks about the Brownian motion.
Brownian motion can be defined as the arbitrary movement of the particles suspended in a fluid (such as a liquid or a gas) that result from their collision with the energetic molecules in the fluid. The botanist Robert Brown (in 1827) described this phenomenon by looking through a microscope at the pollen of Clarkia pulchella plant which is immersed in water.
This pattern of motion characteristically alternates casual fluctuations in the position of particle within a fluid sub-domain with the transfer to another sub-domain.
The kinetic energy of the molecular Brownian motions along with those of molecular vibrations and rotations analysis to the caloric module of a fluid's internal energy.
Example:
Proteins go through the recurrent collisions.
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