Nitrogen gas is heated by a pulsed laser to 50 000 K. If the diameter of the nitrogen atoms is assumed to be 1.0 × 10^?10 m, and the pressure is 1.0 atm, what is the mean free path?
a. 1.5 × 10^?4 m
b. 1.5 × 10^?7 m
c. 1.5 × 10^?10 m
d. 1.5 × 10^?14 m
e. 1.5 × 10^?2 m
a
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