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Question: If rate of diffusion of A is 5 times that of B, what will be the density ratio of A and B....

If rate of diffusion of A is 5 times that of B, what will be the density ratio of A and B.

A

1/25

B

1/5

C

25

D

4

Answer

1/25

Explanation

Solution

ra=5rbr _ { a } = 5 r _ { b } ; dadb=[rbra]2=(15)2=125\frac { d _ { a } } { d _ { b } } = \left[ \frac { r _ { b } } { r _ { a } } \right] ^ { 2 } = \left( \frac { 1 } { 5 } \right) ^ { 2 } = \frac { 1 } { 25 }