1.

For gaseous state, if most probable speed is denoted by `C^(**)` average speed by `barC` and root square speed by `C`, then for a large number of molecules, the ratios of these speeds areA. `overset(.)(C) : bar(C) : C= 1 : 1.128 : 1.225`B. `overset(.)(C) : bar(C) : C = 1 : 1.225 : 1.128`C. `overset(.)(C) : bar(C) : C = 1.225 : 1.128 : 1`D. `overset(.)(C) : bar(C) : C = 1.128 : 1.225 : 1`

Answer» Correct Answer - A
`overset(.)(C) : bar(C) : C = sqrt((2RT)/(m)) : sqrt((8RT)/(pi m)) : sqrt((3RT)/(m))`
`= sqrt2 : sqrt((8)/(pi)) : sqrt3`
`= 1.414 : 1.596 : 1.732`
`= 1 : 1.128 : 1.225`


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