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3 cards from this section. Quick, good the night before a test.
What is mass transfer?
Think about how substances like water or air move.
Define molecular diffusion.
Consider how dye spreads in water.
What is the primary factor driving molecular diffusion?
Think about how molecules want to spread out.
True or False: Bulk motion and molecular diffusion can happen simultaneously.
Consider a flowing river with dissolved substances.
Given an oil spill scenario, calculate the time it would take for half of the oil's mass to evaporate based on known rates of evaporation.
Use exponential decay concepts from chemistry.
Analyze how the diffusion coefficient will change when a temperature shift occurs in a chemical dispersed in water versus air.
Consider how warmer fluids behave differently.
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