62. If the pressure in a closed vessel is reduced by drawing out some gas, the mean free path of the molecules
(a) Is decreased
(b) Is increased
(c) Remains unchanged
(d) Increases or decreases according to the nature of the gas
Answer-b
(4)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)