PART C: A cubical box 1.00 mm on a side contains air at 20.0∘C∘C. What would the pressure inside the box have to be in o

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PART C: A cubical box 1.00 mm on a sidecontains air at 20.0∘C∘C. What would the pressure inside the boxhave to be in order for the mean free path of air molecules(assumed to be spheres of radius 2.0×10−10m2.0×10−10m) to be 1.00mm, so that a typical molecule suffers no collisions with othermolecules as it travels the width of the box?
PART D:
How many moles of air would be inside the box at the pressurecalculated in part C? (At 1 atm pressure, this boxwould contain 41.4 mol of air.)