What are the two processes which show that the particles of a gas move continuously?
What are the two processes which show that the particles of a gas move continuously?
Diffusion
There are two process which show that the particles of gas move continuously are following: 1) Brownian motion 2) Diffusion
1) Brownian motion:
1) In 1827 Robert Brown. He observed a continuous and rapid zig-zag motion in colloidal solution under
the microscope. 2)He called this continuous and rapid zig-zag motion of the colloidal particles as Brownian. 3)This motion is independent of the nature of the colloidal particles. It is more rapid when
the size of the particles is small and the solution is less viscous. 4)The Brownian motion is due to the bombardment of colloidal particles by molecules of
dispersion medium. 5)The intensity of motion depends upon the size of the particles and the viscosity of
the dispersion medium.
2)Diffusion: The process of movement of a substance (solid, liquid or gas) from the region of higher concentration to the region of lower concentration so as to spread uniformly is called diffusion.
1)The rate of diffusion increases with increase in the temperature of the substance. 2)This is because when the temperature of a substance is increased by heating, the particles present in it gains, kinetic
energy and moves faster which increases the rate of diffusion.
Diffusion
There are two process which show that the particles of gas move continuously are following: 1) Brownian motion 2) Diffusion
1) Brownian motion:
1) In 1827 Robert Brown. He observed a continuous and rapid zig-zag motion in colloidal solution under
the microscope. 2)He called this continuous and rapid zig-zag motion of the colloidal particles as Brownian. 3)This motion is independent of the nature of the colloidal particles. It is more rapid when
the size of the particles is small and the solution is less viscous. 4)The Brownian motion is due to the bombardment of colloidal particles by molecules of
dispersion medium. 5)The intensity of motion depends upon the size of the particles and the viscosity of
the dispersion medium.
2)Diffusion: The process of movement of a substance (solid, liquid or gas) from the region of higher concentration to the region of lower concentration so as to spread uniformly is called diffusion.
1)The rate of diffusion increases with increase in the temperature of the substance. 2)This is because when the temperature of a substance is increased by heating, the particles present in it gains, kinetic
energy and moves faster which increases the rate of diffusion.
