Igcse Model Questions Vol1 2020 Biology Question 10
Practice objective / multiple choice question 10 from the 2020 Igcse Model Questions Vol1 Biology examination.
A semi‑permeable membrane separates two compartments. The membrane has an effective diffusion area of \(200\) mm\(^2\) and a thickness of \(10\) µm. The diffusion coefficient for the solute is \(1.5 \times 10^{-5}\) cm\(^2\) s\(^{-1}\), and the concentration difference across the membrane is \(0.8\) mol cm\(^{-3}\). Using Fick's first law, calculate the rate of diffusion of the solute in mol s\(^{-1}\). Give your answer in scientific notation to two significant figures.
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This is Igcse Model Questions Vol1 2020 Biology Question 10. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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