1.

The ratio between the root mean square velocity of H_(2) at 50K and that of O_(2) at 800K is

Answer»

4
2
1
`1//4`

SOLUTION :`m(H_(2)) = sqrt(( 3R xx 500)/( 2))`
`m ( O_(2)) = sqrt(( 3R xx 800)/( 32))`
`( mu ( H_(2)))/( mu ( O_(2))) = sqrt(( 3R xx 500)/( 2) ) xx sqrt( ( 32 ) /( 3R xx 800))`
`= sqrt(( 500 xx 32)/( 2 xx 800)) = 1 `


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