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What is the Root mean square velocity and average velocity?

What is the Root mean square velocity and average velocity?

Grade:12th pass

2 Answers

Vikas TU
14149 Points
one year ago
Dear student 
Root mean square velocity (RMS value)is the square root of the mean of squares of the velocity of individual gas molecules. T = Temperature in Kelvin. Average velocity is the arithmetic mean of the velocities of different molecules of a gas at a given temperature.
Vikas Amritiya
askIITians Faculty 234 Points
one year ago

 

  • Root mean square velocity  The square root of the mean of squares of the velocity of individual gas molecules.
μR.M.S.=M3RT
Whereas,
R is the gas constant.
T is the temperature (in K).
M is the molar mass of the gas.
  • Average velocity  The arithmetic mean of the velocities of different molecules of a gas at a given temperature.
μav.=πM8RT
Whereas,
R is the gas constant.
T is the temperature (in K).
M is the molar mass of the gas.

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