How real gases different from ideal gases?

An ideal gas is defined as a gas that obeys gas laws at all pressure and temperature conditions. Ideal gases have velocity and mass. They do not have volume. A real gas is a gas that does not obey gas laws at all standard pressure and temperature conditions.

Following are the ways to differentiate real gases from ideal gases:

  • Real gases have inelastic collisions, while ideal gases have elastic collisions.
  • All the gas molecules of real gas are not identical, while all the gas molecules of an ideal gas are identical.
  • The shape of the gas molecules in real gases are not spherical, while the shape of the gas molecules in ideal gases,
  • They are all spherical.

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