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Gaseous state

Gaseous State

name of the chapter:  Gaseous state

Content Provider: FIITJEE

Lecturer from FIITJEE.


NCERT content:

The gaseous state is the simplest of all states of matter, but only 11 gases in the periodic table behave as gases under standard temperature and pressure conditions ( STP i.e. 1 atm and 273K). These are Helium, Neon, Argon, Krypton, Xenon, Radon, Hydrogen, Nitrogen, Oxygen, Fluorine and Chlorine

The primary difference between solids, liquids, and gases is that:

  • Solids (substances that exist in the solid state) have definite shapes and occupy fixed volumes. 
  • Liquids (substances that exist in the liquid state) do not have definite shapes, but they occupy fixed volumes. They occupy the shape of their containers and are slightly compressible.
  • Gases (substances that exist in the gaseous state) do not have any definite shapes and do not occupy fixed volumes. Gaseous substances occupy the shape of their container and are highly compressible

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