Which of the following properties that influence the rate of diffusion is studie

Question

Which of the following properties that influence the rate of diffusion is studied when measuring the diffusion distance of potassium permanganate in both water and agar? (Circle one.) a. molecule weight of the substance b. permeability of the membrane c. temperature of the solvent d. viscosity of the solvent Which of the following properties that influence the rate of diffusion is studied when measuring the diffusion distance of both methylene blue and potassium permanganate in agar? (Circle one.) a. molecular weight of the substance b. permeability of the membrane c. temperature of the solvent d. viscosity of the solvent A ___________________ (concentration/pressure) gradient drives the movement of solutes in diffusion, whereas a ______________________ (concentratiom/pressure) gradient drives the movement of fluid in filtration.

Explanation / Answer

7.property that influence rate of diffusion of potassium permagnate in water and agar is

Viscosity of solvent.

Agar is more viscous than water so rate of diffusion of potassium permagnate is slower in agar than water. Viscosity of solvent and diffusion of solute in it is, inversely related.

8.property that influence diffusion of potassium permagnate and methylene blue in agar is

Molecular weight of substance

MEthylene blue has more molecular weight than compared to potassium permagnate so diffusion of methylene blue in agar is slower than that of potassium permagnate.

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