Write the general properties of gases.
Gases: It is a state of matter in which the atoms or molecules have no particular arrangement, no fixed volume nor do they have fixed shape, but have maximum fluidity.
The general properties of gases are as follows -
1. Gases do not have a definite shape and definite volume:
Gases have the least intermolecular force of attraction and maximum intermolecular space. Therefore, gas molecules move freely and cover all the space when filled in a container, thus gases do not have a definite shape nor do they have a definite volume.
2. Compressibility:
Gases are highly compressible, which means a large quantity of gas can be compressed and filled in a small container. This property is due to the maximum intermolecular space between the molecules of gas.
3. Diffusion:
Due to negligible intermolecular force of attraction, the gas molecules move freely and very fast from one place to another and get mixed with other gases as well. a classical example of diffusion of gases is when a tasty dish is being cooked in the kitchen, the fragrance reaches into other rooms as well.
4. Fluidity :
It is defined as the capacity to flow. As gas molecules move very easily and quickly they tend to flow easily as well and have maximum fluidity.
5. Density:
Since the intermolecular space is maximum in gases therefore the density will be very low.
6. Gases exert uniform pressure on walls of a closed container: