Question

multiple choice question
what drives diffusion?
○ chemical reactions within the solution
○ gravitational force working on molecules
○ nuclear energy from inside atoms
○ the random movement of molecules

Explanation:

Diffusion is the movement of particles from an area of high concentration to low concentration. It is driven by the random thermal motion (Brownian motion) of molecules. Chemical reactions don't drive diffusion, gravitational force has negligible effect on molecular diffusion, and nuclear energy is unrelated. So the correct option is about the random movement of molecules.

Answer:

D. The random movement of molecules