Table of Contents
What is the Brownian Motion?
The Brownian Motion is a physical phenomenon that is observed when a particle is suspended in a fluid and is subjected to random collisions with the molecules of the fluid. The collisions cause the particle to move about erratically and it appears to “dance” around. The Brownian Motion was first observed by Robert Brown in 1828.
Brownian Movement
The Brownian Movement is the random movement of particles in a fluid. The particles are constantly moving around and bouncing off of each other. This movement is caused by the thermal energy of the particles.
What is the Brownian Movement in Chemistry?
The Brownian Movement is the movement of tiny particles (such as atoms or molecules) in a liquid or gas, caused by the random motion of the molecules in the liquid or gas. The tiny particles constantly buffeted by the molecules around them, and this motion causes them to move around chaotically.
Brownian Movement in Colloids
The Brownian motion describes the random movement of particles suspended in a fluid. The particles constantly buffeted by the surrounding fluid molecules, and this movement results in a chaotic jittering motion. The Brownian motion named after the botanist Robert Brown, who first observed the phenomenon in 1828.
The Brownian motion most easily observed in a suspension of small particles in a fluid. The particles usually less than 1 micrometer in size, and they suspended in a liquid or gas. The movement of the particles can be seen with a microscope, and it is particularly obvious when the particles are illuminated with a light beam.
The Brownian motion caused by the thermal energy of the molecules in the surrounding fluid. The thermal energy causes the molecules to move around randomly, and this movement transferred to the suspended particles. The Brownian motion continues until the thermal energy of the particles is equal to the thermal energy of the surrounding fluid.
Cause of Brownian Motion
The cause of Brownian motion is the collisions between the particles in a fluid and the surrounding molecules. The collisions cause the particles to move around randomly.
Effects of Brownian Motion
The motion of particles in a liquid or gas is due to the random thermal motion of the molecules. This motion called Brownian motion after the botanist Robert Brown who first observed it in 1827.
The magnitude of the Brownian motion is proportional to the temperature of the liquid or gas and the size of the particles. The motion of the particles can seen by suspending a small particle in a liquid or gas and observing it with a microscope.
The Brownian motion of the particles causes them to collide with the molecules in the liquid or gas. This collision causes the particles to move in a random direction. The Brownian motion also causes the particles to spread out over time.
