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The rms speed of oxygen molecule in a gas at `27^(@)C` would be given by

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The rms speed of oxygen molecule in a gas at `27^(@)C` would be given by
A. 483 `ms^(-1)`
B. 966 `ms^(-1)`
C. 4.83 `ms^(-1)`
D. 9.66 `ms^(-1)`
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Correct Answer - A
The rmsspeed is given by
`v_(rms)=sqrt((3RT)/(Mol.wt))=sqrt((3xx8.3xx(273+27))/(2xx16xx10^(-3)))=sqrt((3xx8.3xx300)/(32xx10^(-3)))`
`rArr" "v_(rms)=483ms^(-1)`
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