Integrated circuits are manufactured in vacuum chambers in which the air pressure is $1\mathrm{.}00{10}^{-10}mm$ of $Hg.$

Part A

What is the number density? Assume $T=20\mathrm{.}0C.$

Express your answer in reciprocal cubic meters.

Previous Answers

Correct

Here we learn how to calculate the number density of air in a vacuum chamber if we know the pressure and temperature.

Part B

What is the mean free path of a molecule?

Express your answer with the appropriate units.

Help on part B please