1.

The temperature at which the r.m.s. velocity of gas molecules is doubled than that at 27^(@)C is :

Answer»

`108^(@)`
`927^(@)C`
`327^(@)C`
`54^(@)C`

Solution :`sqrt(( 3RT)/( M)) = 2 sqrt(( 3R xx 300)/(M))`
or `T = 1200K = 927^(@)C`


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