Calculate the fraction of helium atoms

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Earth is losing its supply of helium by escape from the atmosphere, because helium has a high median speed and (unlike hydrogen, which has even less mass) it does not chemically react to form heavier molecules as it difuses into the stratosphere. Write the integral necessary to calculate the fraction of helium atoms at 273 K that have speeds greater than 11 km s -1 , roughly the escape velocity. Include any necessary numerical values and unit conversions

Reference no: EM131329991

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