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PhysicsNEET 2024Ideal gas equation and kinetic interpretation of pressure

Kinetic Theory

The following graph represents the curves of an ideal gas (where is the temperature and the volume) at three pressures , and , compared with those of Charles's law represented as dotted lines. Then the correct relation is:

Question 47 as printed in the NEET 2024 booklet

  1. A.
  2. B.
  3. C.
  4. D.

Solution

For an ideal gas at fixed pressure, : the line through the origin has slope , so the steepest line corresponds to the lowest pressure. Reading the slopes in the figure gives .

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