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Four molecules of a gas are having speeds of l, 4, 8 and 16 ${ms}^{- 1}$ . The root mean square velocity of the gas molecules is

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7.25 ms-1

52.56 ms-1

84.25 ms-1

9.2 ms-1

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detailed solution

Correct option is D

C =12+42+82+1624 ms-1 = 1+16+64+2564ms-1= 84.25 ms-1 = 9.2 ms-1

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Four molecules of a gas are having speeds of l, 4, 8 and 16 ms-1. The root mean square velocity of the gas molecules is

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Four molecules of a gas are having speeds of l, 4, 8 and 16 ${ms}^{- 1}$ . The root mean square velocity of the gas molecules is