The ratio of most probable velocity to that of average velocity isA. `pi//2`B. `sqrt(pi)//2`C. `2//sqrt(pi)`D. `2//pi`

The ratio of most probable velocity to that of average velocity isA. `

1.	The ratio of most probable velocity to that of average velocity isA. `pi//2`B. `sqrt(pi)//2`C. `2//sqrt(pi)`D. `2//pi`
Answer» Correct Answer - B According to the kinetic molecular theory of gases , we have `u_(mp) : u_(aV) = sqrt((2 RT)/(M)) : sqrt((8 RT)/(pi M))` ` = (sqrt(2))/(sqrt(8//pi))` ` = (sqrt(2pi))/(sqrt(8)) = (sqrt(2 pi))/(sqrt(4.2))` `= (sqrt(2 pi))/(2 sqrt(2)) = (sqrt(pi))/(2)`

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The ratio of most probable velocity to that of average velocity isA. `pi//2`B. `sqrt(pi)//2`C. `2//sqrt(pi)`D. `2//pi`

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