The movement of gas molecules from an area of high concentration to one of lower concentration describes the property of which of the following?
a. Osmosis c. Diffusion
b. Effusion d. Suspension
ANS: C
Diffusion is movement of molecules from areas of high concentrations to low concentrations. Effusion refers to the seepage or loss of blood through torn blood vessels. Osmosis describes the movement of water across a semipermeable membrane from a less-concentrated to a more-concentrated area. Suspensions are mixtures of solutions with undissolved particles or mol-ecules.
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