Convection
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Heat transfer due to vertical exchange of mass
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Occurs in fluids (liquids, gases) because of gravity
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Warm, buoyant air rises
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Cool, dense air sinks
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Convection warms top of liquid!
Warm
Cool
Warm
Cool
Warm
Cool
heat below
-
convection
heat side
-
convection
heat top
- no
convection
gravity
gravity