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  4. If the pressure in a closed vessel is reduced by drawing out some gas, the mean free path of the molecules

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Q. If the pressure in a closed vessel is reduced by drawing out some gas, the mean free path of the molecules

VMMC MedicalVMMC Medical 2011

Solution:

The distance travelled by a molecule between two consecutive collision is called mean free path. If pressure is reduced, r molecule will travel longer distance before collision, so mean free path is increased.