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barrylwires
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Homework Statement
Heat is added until the rms speed of a helium atom has increased 50%. Find new pressure. (Not all parameters given.)
Homework Equations
rms = (3kT/m)1/2
mass of molecule = mass of mole/NA
Then, mass of helium molecule is 6.6x10-26kg
The Attempt at a Solution
Question: Is rms speed of a helium molecule the same as the rms speed of an atom. Yes, because the atoms make up the molecule? No, helium is diatomic (right?) and so that has to be taken into account??