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JEE Main202125 Jul 2021Evening ShiftPhysicsKinetic Theory of GasesActual

A system consists of two types of gas molecules A and B having the same number density 2 × 10 25 m - 3 . The diameter of A and B are 10 A and 5 A respectively. They suffer collisions at room temperature. The ratio of average distance covered by the molecule A to that of B between two successive collisions is ___________ × 10 - 2

Correct answer

0

Step-by-step solution

∵ Mean free path λ = 1 2 π d 2 n λ 1 λ 2 = d 2 2 n 2   d 1 2 n 1 = 5 10 2 = 0 . 25 = 25 × 10 - 2

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