This is from the 2005 version so it may not be in newer books.
The equation describes the diffusion rate of a gas across a membrane.
J = [-(DAΔC)/(Δx)](α😉 - [-(DAΔP)/(Δx)]
where
J = diffusion rate (mol/sec)
D = diffusion coefficient (cm^2/sec)
A = surface area of the plane of interest (cm^2)
ΔC = concentration outside the membrane - concentration inside the membrane (mol/cm^3)
ΔP = pressure outside the membrane - pressure inside the membrane (mmHg/cm^3 I'm guessing)
Δx = width of the membrane/distance across which diffusion takes place (cm)
So what is α? 😛 I was thinking maybe some sort of constant that falls out of the ideal gas equation (proportionality constant for P vs C), but it's not mentioned in the book.
The equation describes the diffusion rate of a gas across a membrane.
J = [-(DAΔC)/(Δx)](α😉 - [-(DAΔP)/(Δx)]
where
J = diffusion rate (mol/sec)
D = diffusion coefficient (cm^2/sec)
A = surface area of the plane of interest (cm^2)
ΔC = concentration outside the membrane - concentration inside the membrane (mol/cm^3)
ΔP = pressure outside the membrane - pressure inside the membrane (mmHg/cm^3 I'm guessing)
Δx = width of the membrane/distance across which diffusion takes place (cm)
So what is α? 😛 I was thinking maybe some sort of constant that falls out of the ideal gas equation (proportionality constant for P vs C), but it's not mentioned in the book.
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