Which expression gives the pressure exerted by a gas on a flat surface of area when…

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Fluids · Fluids

Problem

Which expression gives the pressure

P

exerted by a gas on a flat surface of area

A

when the atoms collectively apply a net force

\mathbf F

to the surface? (a)

P = F_{\perp}A

(b)

P = F_{\parallel}/A

(c)

P = F_{\perp}/A

(d)

P = A/F_{\perp}