Question

QUESTION = define diffusion

Answer 1

Answer:

Diffusion is the movement of a fluid from an area of higher concentration to an area of lower concentration. ... Diffusi

on may also be thought of as the movement of particles down a concentration gradient. The term "diffusion" comes from the Latin word diffundere, which means "to spread out."

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Answer 2

Diffusion is the movement of a fluid from an area of higher concentration to an area of lower concentration. Diffusion is a result of the kinetic properties of particles of matter. The particles will mix until they are evenly distributed. Diffusion may also be thought of as the movement of particles down a concentration gradient.

H2S(g) in a test tube will slowly diffuse into the air of a lab until equilibrium is reached.
Food coloring in water diffuses until it's evenly distributed throughout the liquid.
Perfume diffuses throughout an entire room.
Adding a dot of dye to gelatin is a good example. The color will slowly diffuse throughout the gel.
Note, however, most of the common examples of diffusion also illustrate other mass transport processes. For example, when perfume is smelled across a room, air currents or convection are more of a factor than diffusion. Convection also plays a large role in the dispersion of food coloring in water.



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