question_answer

Which of the following relationship is correct, where r is the rate of diffusion of a gas and d is its density                [CPMT 1994]

A)                 \[r\propto \sqrt{1/d}\] 

B)                 \[r\propto \sqrt{d}\]

C)                 \[r=d\] 

D)                 \[r\propto d\]