suppose a gas sample in all have 6*1023 molecules. each 1/3 of the molecules have r.m.s. speed 104 cm/sec, 2*104 cm/sec, 3*104 cm/sec. calculate the r.m.s. speed of gas molecules in sample.

Urms= sq. Root of {( 10^8 + 4×10^8 + 9×10^8)÷3} =sq.root of {(14×10^8)÷3} =2.16×10^4 cm/ s Ans.
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Suppose a gas sample in all have 6*10^23 molecules each 1/3 rd of the molecules have rms speed 10^4 cm/sec 2*10^4 cm/sec and 3*10^4 cm/sec calculate rms speed of gas molecules in sample
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