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Heat transfer in liquid and gases takes place by

  • Heat convection is a mode of heat transfer by the mass motion of a fluid such as air.
  • This movement causes the fluid to circulate, allowing heat to be transferred from one place to another.
  • Convection can also occur in solids, but it is most commonly associated with fluids.
  • Heat convection occurs to the surface of an object where the surrounding fluid of the object is heated and moved energy away from the source of heat.