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4 cards from this section. Quick, good the night before a test.
What is molecular diffusion?
Think about how a drop of ink spreads in water.
What does the diffusion coefficient indicate?
Consider what affects how fast something can move in a fluid.
What is the primary driver of molecular diffusion?
Consider what initiates movement in a substance.
True or False: Diffusion cannot occur without bulk movement.
Think about what happens in a stagnant liquid.
Calculate the expected concentration of a pollutant within a river if an initial concentration of 5 mg/L is released and it diffuses evenly at a rate defined by its diffusion coefficient across a width of 2 m over a distance of 100 m.
Feel free to reference concentration gradient equations.
A tank holds 100L of water with a chemical concentration of 10mg/L. If a 1 g chemical is added, how will diffusion alter concentration over time, considering the diffusion coefficient?
Examine how the diffusion coefficient impacts equilibrium state.
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