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find the mean free path of the molecule of oxygen at normal pressure, if the coefficient of diffusion of oxygen at the same pressure and temperature of 0 ° C is equal to 0,19 cm ² / sec.

найти среднюю длину свободного пробега молекулы кислорода при нормальном давлении, если коэффицент диффузии кислорода при том же давлении и температуре 0°С равен 0,19cm²/с.

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