The lunar surface reaches 370 K by midday. The atmosphere consists of neon, argon and traces of helium at a total pressure of only 2 x 10-14 atm. Calculate the root mean square speed of each component in the lunar atmosphere
T = 370 K
MrNe = 20.18 g/mol = 0.02018 kg/mol
MrAr = 39.95 g/mol = 0.03995 kg/mol
MrHe = 4 g/mol = 0.004 kg/mol
R = 8.314
Vrms =
VrmsNe = = 676.24 m/s
VrmsAr = = 480.63 m/s
VrmsHe = = 1518.93 m/s
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