Tagged Questions
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Root Mean Square Speed of Gas
The RMS speed of particles in a gas is
$v_{rms} = \sqrt{\frac{3RT}{M}}$
where $M$ = molar mass; according to this Wiki entry: http://en.wikipedia.org/wiki/Root-mean-square_speed
The gas laws ...
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Working out the mean velocity of particles in a gas
I'm trying to answer the following question:
Air consists of molecules Oxygen (Molecular mass = 32$amu$) and Nitrogen (Molecular mass = 28$amu$). Calculate the two mean translational kinetic ...
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3answers
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How to deduce E=(3/2)kT?
It says in my course notes that a particle has so-called "kinetic energy"
$E=\frac{3}{2}kT=\frac{1}{2}mv^²$
Where does this formula come from? What is k?
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Difference in vertical stratification of partial pressure due to gravity
Say you have a mixture of two ideal gases in the presence of gravity. There is a vertical pressure gradient on the mixture due to the force balance. This condition is required to prevent the entire ...
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1answer
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Collision frequency at surfaces
Collision frequency for particles in gases is well known, and collision theory is used to derive chemical reaction rates in gases, (and particles in liquid solutions as well). Using the mean velocity ...
