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The escape velocity from earth's surface is given by VE=(2gR)^1/2 where g is the gravitational accelaration (9.807 ms^-2) and R is the radius of Earth (6.37 X 10^6 m). a) At what temperature will V mp for N2 be equal to the escape velocity? b) How does the answer for part (a) change if the gas of interest is He? c) What is the largest molecular mass that is capable of escaping Earth's surface at 298 K?

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