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Question: The densities of two gases are in the ratio of 1 : 16. The ratio of their rates of diffusion is....

The densities of two gases are in the ratio of 1 : 16. The ratio of their rates of diffusion is.

A

16 : 1

B

4 : 1

C

1 : 4

D

1 : 16

Answer

4 : 1

Explanation

Solution

d1d2=116\frac { d _ { 1 } } { d _ { 2 } } = \frac { 1 } { 16 } ; r1r2=d2d1=16=41\frac { r _ { 1 } } { r _ { 2 } } = \sqrt { \frac { d _ { 2 } } { d _ { 1 } } } = \sqrt { 16 } = \frac { 4 } { 1 }