Name: Solid Solutions
Uploaded: 2019-07-19
Duration: 2 min 56 s
Description: Solutions can be categorized as solid, liquid, and gaseous based on the physical states of solvents and solutes. In this video, let's learn about solid solutions.

Question

Define vapour pressure of a liquid.

Accepted Answer

Vapour pressure of a liquid at any temperature may be defined as the pressure exerted by the vapour present above the liquid in equilibrium with the liquid at that temperature. This is called the saturated vapour pressure as the vapour phase is saturated with vapour at this stage.

Vapour pressure, also known as vapour equilibrium pressure, can be defined as the pressure exerted (in a system featuring thermodynamic equilibrium) by a vapour with its condensed phases (solid or liquid) in a closed system at a given temperature. The equilibrium vapour pressure is known to serve as an indicator of the evaporation rate of a liquid. The propensity of particles to escape from the liquid (or a solid) is known to be related. A material that, at normal temperatures, has a high vapour pressure is generally referred to as a volatile material. It can be noted that the pressure exhibited above a liquid surface by the vapour is called vapour pressure.

Define vapour pressure of a liquid.

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