Question

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What is convection?​

Answer 1

Answer:

Convection is the process of heat transfer by the bulk movement of molecules within fluids such as gases and liquids.

Explanation

Ice melts because heat moves to the ice from the air. As a result, the ice melts from a solid to liquid.

Answer 2

Diffusion, advection, or both are used to transfer heat by convection.

Explanation:

• Convection is a heat transfer process in which heat energy is transferred by the bulk movement of molecules in fluids such as gases and liquids. Under normal conditions, gases and liquids are poor heat conductors, yet they can quickly transport heat.
• Convection heat transfer is the process of heat transmission between a surface and a liquid or fluid that is in contact with the surface. When transporting heat from one liquid to another via a barrier, convection is crucial.
• Convectional heat transmission happens either through thermal diffusion (fluid molecule mobility) or advection, in which heat is transported through the bulk motion of heat currents in the fluid.