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Asked Dec 24, 2019
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At what temperature would the rms speed of helium atoms equal (a) the escape speed from Earth, 1.12 x 104 m/s and (b) the escape speed from the Moon, 2.37 x 103 m/s? Note: The mass of a helium atom is 6.64 x 10-27 kg.

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Formula to calculate the temperature at which rms...

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,2 mv T =. 3k (6.64x 10-2 kg)(1.12×10ʻ m/s ) 3(1.38x10-23 J/K X: = 2.01×10ʻK The temperature at which rms peed is equal to the escape velocity is 2.01×10ʻK.

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