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InterviewSolution
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Distinguish between average speed and rms speed. If three molecules have speed `u_(1), u_(2), u_(3)` what will be their average speed and rms speed. |
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Answer» Average speed is the arithmetic mean of the speeds of the molecules. `:.` Average speed = `(u_(1)+u_(2)+u_(3))/(3)` rms speed is the root mean square and is define as the square root of the mean of the wquares of different speeds of the individual molecules. rms speed = `sqrt((u_(1)^(2)+u_(2)^(2)+u_(3)^(2))/(3))`. |
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