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What is the average velocity of the neon atoms in the gas phase at 25 degrees...

What is the average velocity of the neon atoms in the gas phase at 25 degrees celsius.

The answer should be 607 m/s but I cannot seem to get that. Please show work and formulas!

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Answer #1

Average velocity ,

Where

R = gas constant = 8.314 J / (mol-K)

T = temperature = 25 oC = 25+273 = 298 K

M = Molar mass of Ne = 20.2 g/mol

                                  = 20.2x10-3 kg /mol

Plug the values we get

    = 559 m/s

Therefore the average velocity of Neon atoms , v = 559 m/s

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