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At room temperature the rms speed of the molecules of a certain diatomic gas is formed to be `1930m//sec` The gas is .

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At room temperature the rms speed of the molecules of a certain diatomic gas is formed to be `1930m//sec` The gas is .
A. `H_(2)`
B. `F_(2)`
C. `O_(2)`
D. `CI_(2)`
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`u_(rms) = sqrt((3RT)/(M))=sqrt((3xx8.314xx300)/(M))=1930`
`:. M =2 xx 10^(-3) kg` .
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