1.

Among the following which should have the highest rms speed at the same temperature?

Answer»

`SO_(2)`
`CO_(2)`
`O_(2)`
`H_(2)`

Solution :We know rms SPEED C`=sqrt((3RT)/M)`
So if temperature REMAINS the same `cprop 1/(sqrt(M))`
So GAS with least molecular weight will have the HIGHEST r.m.s speed


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