InterviewSolution
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InterviewSolution
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The root mean square velocity of hydrogen molecules at 300 K is `1930 ms^(-1)`. The rms velocity of oxygen molecules at 1200 K will beA. `7.6 xx 10^(3) m// `secB. `3.8 xx 10^(3) m// `secC. `0.95 xx 10^(3) m // `secD. `0.475 xx 10^(30 m // `sec |
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Answer» Correct Answer - C `C_(rms)=sqrt((3RT)/(M))` `C_(rms)(H_(2))=sqrt((3R xx 300)/(2))=1.9 xx 10^(3) m//sec` `C_(rms)(O_(2))= sqrt((3Rxx1200)/(32))= (2)/(4)(sqrt((3R xx 300)/(2)))` `=(1)/(2) (1.9 xx 10^(3))m//sec = 0.95 xx 10^(3) m //sec` |
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