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•• Consider an ideal gas at standard temperature and pressure (STP:T = 273K, p = 1 atm = 1.01 × 105 N/m2). Imagine that the molecules of the gas are equally spaced so that every molecule is at the center of a small cube. (a) What is the edge length of this cube, which is the average distance between nearest-neighbor molecules in the gas? (b) Qualitatively, how does this mean molecular separation distances compare with the diameter of a small molecule such as O2?
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