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InterviewSolution
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Root mean square velocity of gas molecules is `300 m//sec`. The `r.m.s` velocity of molecules of gas with twice the molecular weight and half the absolute temperature is :A. `300ms^(-1)`B. `600ms^(-1)`C. `75ms^(-1)`D. `150ms^(-1)` |
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Answer» Correct Answer - D rms velocity `C=sqrt((3pV)/(M))=sqrt((3RT)/(M))` and the new rms velocity , `c_(1)=sqrt((3R(T//2))/((2M)))=(1)/(2)sqrt((3RT)/(M))` `=(c)/(2)=(300)/(2)=150ms^(-1)` |
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