Question

Define the following terms.
a. Sublimation
b. Vaporization
c. Intermolecular force
d. Condensation
e. Diffusion
f. Brownian movement​

Answer 1

Explanation:

Fusion : The heating process by which a solid changes into the liquid state is called fusion.  (b) Vaporisation : The heating process by which a liquid changes into its vapour state is called vaporisation.  (c) Condensation : The process by which a substance in gaseous state changes into its liquid state is called condensation.  (d) Sublimation: The change of solid on heating to vapours directly and vice-versa without passing through the liquid state is called sublimation.   (e) Diffusion : The phenomenon of intermixing or spreading of gaseous molecules is called diffusion.  (f) Melting point: The fixed temperature at which a solid changes into a liquid at a given pressure is called its melting point. The temperature remains constant as long as the conversion is going on.  (g) Boiling point: The fixed temperature at which a liquid starts changing into gaseous state is called its boiling point. The temperature remains constant till the whole of the liquid changes into gaseous state.  (h) Liquefaction : Change of vapours on cooling to liquid is called liquefaction.Read more on Sarthaks.com - https://www.sarthaks.com/169523/define-the-following-terms-a-fusion-b-vaporisation-condensation-sublimation-diffusion

Answer 2

1. Sublimation is the conversion between the solid and the gaseous phases of matter,
2. Vaporization, conversion of a substance from the liquid or solid phase into the gaseous (vapour) phase.
3. Intermolecular forces are the forces which mediate interaction between molecules, including forces of attraction or repulsion which act between atoms and other types of neighboring particles,
4. Condensation is the process where water vapor becomes liquid.
5. Diffusion is the process of movement of molecules under a concentration gradient. .
6. the erratic random movement of microscopic particles in a fluid, as a result of continuous bombardment from molecules of the surrounding medium.