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JEE Main2013ChemistryStates of MatterActual

Which one of the following is the wrong assumption of kinetic theory of gases ?

Options

  1. AMomentum and energy always remain conserved.
  2. BPressure is the result of elastic collision of molecules with the container's wall.
  3. CMolecules are separated by great distances compared to their sizes.
  4. DAll the molecules move in straight line between collision and with same velocity.

Correct answer

D. All the molecules move in straight line between collision and with same velocity.

Step-by-step solution

Molecules move very fast in all directions in a straight line by colliding with each other but with different velocity.

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