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OpenStudy (anonymous):
The escape velocity required for gas molecules to overcome the earth's gravity and go off to outer space is 1.12x10^3 m/s at 15C. Calculate the molar mass of a species with that velocity. Would you expect for find He and H2 molecules in the earth's atmosphere? What about argon atoms?
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OpenStudy (aaronq):
\(v_{RMS}=\sqrt{\dfrac{3RT}{M}}\) plug and solve
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