Let's see what the flux is through a membrane in steady state. Let's consider a 10 nm thick biological membrane that is being crossed by potassium ions. The diffusion constant D for potassium in the membrane is 1x10-16 m2/s. A. What will be the number of potassium ions that will cross an area of 100nm x 100nm in 1 second if the difference in concentration across the membrane is maintained at a constant value of 0.5 mol/L? B. How will the flux vary if the thickness of the membrane increases or decreases? Note: 1 L = 10-3 m3
Let's see what the flux is through a membrane in steady state. Let's consider a 10 nm thick biological membrane that is being crossed by potassium ions. The diffusion constant D for potassium in the membrane is 1x10-16 m2/s. A. What will be the number of potassium ions that will cross an area of 100nm x 100nm in 1 second if the difference in concentration across the membrane is maintained at a constant value of 0.5 mol/L? B. How will the flux vary if the thickness of the membrane increases or decreases? Note: 1 L = 10-3 m3
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Let's see what the flux is through a membrane in steady state. Let's consider a 10 nm thick biological membrane that is being crossed by potassium ions. The diffusion constant D for potassium in the membrane is 1x10-16 m2/s.
A. What will be the number of potassium ions that will cross an area of 100nm x 100nm in 1 second if the difference in concentration across the membrane is maintained at a constant value of 0.5 mol/L?
B. How will the flux vary if the thickness of the membrane increases or decreases?
Note: 1 L = 10-3 m3
Transcribed Image Text:membrane
10 nm
C₂=0
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