Question

what is vapour pressure?​

Answer 1

Answer:

Vapour pressure is a measure of the tendency of a material to change into the gaseous or vapour state, and it increases with temperature. The temperature at which the vapour pressure at the surface of a liquid becomes equal to the pressure exerted by the surroundings is called the boiling point of the liquid.

Answer 2

Vapour pressure is the pressure exerted in thermodynamic equilibrium.

• Vapour pressure is the pressure or measure of the tendency of a material to change into the gaseous or vapour state, which also increases with temperature.
• When the pressure of the liquid at the surface becomes equal to the temperature of the liquid, it is known as boiling point of the liquid in the container.
• This is applicable in a closed container to observe it effectively.