Question

Explain convection in liquids.​

Answer 1

Answer:

Convection is the process of heat transfer by the bulk movement of molecules within fluids such as gases and liquids. The initial heat transfer between the object and the fluid takes place through conduction, but the bulk heat transfer happens due to the motion of the fluid.

Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. ... This is because the particles in liquids and gases move faster when they are heated than they do when they are cold. As a result, the particles take up more volume.

Explanation:

Answer 2

Explanation:

Convection is the circular motion that happens when warmer air or liquid — which has faster moving molecules, making it less dense — rises, while the cooler air or liquid drops down.