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Calculate the rms velocity of oxygen molecules at S.T.P The molecular weight of oxygen is 32. |
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Answer» Solution :HereP = 1 atm = `10.13 xx10^5Nm^(-2)` `M = 32 g = 32 xx10^(-3) kg` V = Molar VOLUME of S.T.P = 22.4 LITRE `=22.4 xx10^(-3) m^3` Root MEAN square velocity of OXYGEN molecules at S.T.P `v_(rms)=sqrt((3PV)/M)` `=sqrt((3xx1.013xx10^5xx22.4xx10^(-3))/(32xx10^(-3)))` `=461.23 ms^(-1)` |
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