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Four molecules of a gas have speeds 1,2,3 and4 $km s^{- l}$ respectively. The value of rms speed of the molecules is (in km $s^{- 1}$ )

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152

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152

none of the above

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detailed solution

Correct option is A

C = 12+22+32+424 = 1+4+9+164 = 152 kms-1

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Four molecules of a gas have speeds 1,2,3 and4 km s-l respectively. The value of rms speed of the molecules is (in km s-1)

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Ready to Test Your Skills?

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Four molecules of a gas have speeds 1,2,3 and4 $km s^{- l}$ respectively. The value of rms speed of the molecules is (in km $s^{- 1}$ )