Calculate the collision frequency in a gaseous sample of nitrogen molecules, N2, at a temperature of 25 °C and pressure of 1 atm. The collision cross section of a nitrogen molecule is 0.43 nm2 and the mean speed at this temperature is 474 m s-1.
A) 76000 s-1
B) 907 * 103 s-1
C) 7.7*109 s-1
D) 1.0 * 1010 s-1
Correct Answer:
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