Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in
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1) Conduction
2) Convection
3) Radiation
4) Both conduction and convection
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Convection.
Convection occurs in liquids and gases (both fluids) where the intermolecular force is low enough to allow the molecules to actually move. This movement makes convection currents. Hot molecules go up, cool down, while cool particles come down and heat up. This sets up a kind of circular current caused by convection.
Convection occurs in liquids and gases (both fluids) where the intermolecular force is low enough to allow the molecules to actually move. This movement makes convection currents. Hot molecules go up, cool down, while cool particles come down and heat up. This sets up a kind of circular current caused by convection.
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