Answer:
The question has some other details missing, here is the complete question ; Consider the following hypothetical problem. Potassium ions have a concentration of 115 x 10-3 mol/liter inside the cell and 4.5 x 10-3 mol/liter outside the cell. The cell wall has a channel through which the potassium ions can travel and it is 25.0 nm in length and 4.00 nm in diameter. Take the diffusion coefficient of potassium to be 3.00 x 10-9 m2/s.
A. What is the difference in concentration, Δc across the cell wall in molecules/m3?
B. What is the cross-sectional area of the potassium channel?
C. What is the rate of molecule transfer of the potassium ions?
Explanation:
The detailed and step by step calculation is as shown in the attachment.
