Question

What do you mean by the following terms :-
$. Melting point.
$. Sublimation
$. Fusion
$. Latent heat of vaporization.
$. Boiling point

Answer 1

$\huge{\underline{\underline{\mathfrak{Answer}}}}$

➡️Melting point :- of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium.

➡️Sublimation :- is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

➡️Latent heat of vaporization :- is a physical property of a substance. It is defined as the heat required to change one mole of liquid at its boiling point under standard atmospheric pressure.

➡️Fusion :- is the process that powers the sun and the stars. It is the reaction in which two atoms of hydrogen combine together, or fuse, to form an atom of helium.

➡️Boiling point :- of a substance is the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid and the liquid changes into a vapor.