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Standard XII
Chemistry
Dalton's Law of Partial Pressures
Question

The CO2 gas does not follow gaseous laws at all ranges of pressure and temperature because :
  1. It is triatomic gas
  2. It solidity at low temperature
  3. Its internal energy is quite high
  4. There is attraction between its molecules

A
There is attraction between its molecules
B
It solidity at low temperature
C
It is triatomic gas
D
Its internal energy is quite high
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Solution
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Real gases do not follow gas laws at all temperature and pressure conditions due to two wrong assumptions in kinetic molecular theory of gases:
(i) The volume occupied by gas molecules is negligible. It is not true because gas molecules do occupy small volume.
(ii) The forces of attraction between gas molecules are zero. It is not true because attractive forces are present between molecules of real gases.

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