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Find the mean free path and the mean time interval between successive collisions of gaseous nitrogen molecules (a) under standard conditions; (b) at temperature t = 0 °C and pressure p = 1.0 nPa (such a pressure can be reached by means of contemporary vacuum pumps). (b) at temperature t = 0 °C and pressure p = 1.0 nPa (such a pressure can be reached by means of contemporary vacuum pumps). |
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