Question

give one example of validate gases exert pressure​

Answer 1

Answer:

Blow air in between the balloons:-

• Observation: The balloons will move closer.

• Inference: The air pressure between the balloons is reduced due to more speed. Air moves from higher pressure to lower pressure bringing the balloons closer.

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Answer 2

Answer:

Some atoms are connected with ionic bonds, some with covalent bonds and some with metllic ones. All of those have atoms who are at a certain temperature.

If they have a temperature, they posses heat energy. And what is heat?

Heat is nothing more but kinetic energy of all the atoms in some kind of structure.

Gases have the weakest bonds, called van der Waals bonds.

Because of the kinetic energy (heat, T>0K) of the gas (structure) the atoms are constantly moving in every direction chaoticaly. In addition, their weak bonds let them spread across any container and bump into walls, creating pressure on every direction.