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Question

Explain why are gases compressed but not liquids ?


Solution

The kinetic-molecular theory explains why gases are more compressible than either liquids or solids. Gases are compressible because most of the volume of a gas is composed of the large amounts of empty space between the gas particles. At room temperature and standard pressure, the average distance between gas molecules is about ten times the diameter of the molecules themselves. When a gas is compressed, as when the scuba tank is being filled, the gas particles are forced closer together.

Compressed gases are used in many situations. In hospitals, oxygen is often used for patients who have damaged lungs to help them breathe better. If a patient is having a major operation, the anesthesia that is administered will frequently be a compressed gas. Welding requires very hot flames produced by compresses acetylene and oxygen mixtures. Many summer barbeque grills are fueled by compressed propane.

GASES ARE HIGHLY COMPRESSIBLE THAN LIQUIDS.BUT LIQUIDS CAN ALSO BE COMPRESSED.GASES CAN BE COMPRESSED HIGHLY BCOZ THEY ARE HAVING LARGER INTER PARTICULAR  SPACE BETWEEN THE PARTICLES AND THESE CAN EASILY DIFFUSE SOMETHING. AND THE MOLECULES ARE FAR APART AND MOVE AROUND ALOT.AND THOSE PARTICLES WONT BE STICKING EACH OTHER TOO.THESE ARE THE REASONS FOR GASES ARE EASILY COMPRESSED THAN LIQUIDS.
 

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