In: Chemistry
for low pressure effusion of gases
how do I calculate area of pinhole and pinhole diameter?
ln(P/P0) = -Ct
dP/P = - (A/V)(RT/2πM)1/2 dt = -C dt
(volume= 285cm3, T= 298.15K)
I got relaxation constant 0.01049 microns/second = C
This is for N2 ( nitrogen)
How do i solve A (pinhole are)?