a. Calculate the root-mean-square speed of helium molecules at room temperature and pressure. (Density of helium at

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a. Calculate the root-mean-square speed of helium molecules at room temperature and pressure. (Density of helium at room temperature and pressure = 0.179 kg m−3.)
b. Compare this speed with the average speed of air molecules at the same temperature and pressure.

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Cambridge International AS And A Level Physics Coursebook

ISBN: 9781108859035

3rd Edition

Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside

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