- #1
higherme
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Homework Statement
A square box contain He at 25C. If the atoms collide with wall perpendicularly (90 degrees) at rate of 4.0E22 times/s, calculate pressure and force exerted on wall given area of wall 100cm^2 and speed of atoms =600 m/s
Homework Equations
PV=Nmv^2
The Attempt at a Solution
I'm not really sure what the N is... the question doesn't give the amount of He gas, so how do i know how many atoms there are? and the same for m...
otherwise, i can find V from area given; velocity also given, then i can find pressure