If the Root Mean Square Velocity of a Particle in a Gas

question 74

Multiple Choice

If the root mean square velocity of a particle in a gas is 450 m/s,and the particle collides with other particles every 2.0 $\times$ 10^-9 seconds on the average,then the mean free path is

• A) 6.0 \(\times\) 10^-7 m.
• B) 7.5 \(\times\) 10^-7 m.
• C) 9.0 \(\times\) 10^-7 m.
• D) 85 \(\times\) 10^-7 m.
• E) 6.9 \(\times\) 10^-7 m.

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