We use phase to express the state of a matter. For example, there are:
In this topic, we are going to discuss more on Gas Phase.
Some physical properties of gases:
They occupy far more space than the liquids or solids.
They are easy to compress and expand.
They exert pressure.
From these properties, we can know that the studies of gases are much related on:
Volume (They occupy spaces)
Temperature (They compress and expand easily when is cooled or heated)
Pressure (They exert pressure)
This is true for the following gas law and we shall discuss these in my future post, which is:
Graham's Law of Diffusion
Ideal Gas Law
Some more notes:
Gases occupy space by diffusion.
Brownian Motion is a phenomena whereby small particles suspended in a liquid tend to move in random paths through the liquid, even if the liquid is calm. This can explain why gases exert pressure.
refers to Standard Temperature and Pressure, which is (or ) and (or ) .
In , of gases(any gases!) occupy a volume of .
EDIT: Thanks to Anish Puthuraya for some informations on the .