(a) The van der Waals parameters for helium are a = 3.46 * 10 2 bar ...

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(a) The van der Waals parameters for helium are a = 3.46 * 10–2 bar · L· mol–2 and b = 2.38 * 10–2 L · mol1. Calculate the apparent volume (in pm3) and radius (in pm) of a helium atom as determined from the van der Waals parameters.

(b) Estimate the volume of a helium atom on the basis of its atomic radius.

(c) How do these quantities compare? Should they be the same? Discuss.

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Chemical Principles The Quest For Insight

ISBN: 9781464183959

7th Edition

Authors: Peter Atkins, Loretta Jones, Leroy Laverman

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