Quick Answer: What Happens To Molecules In Convection?

In which states of matter can convection occur?

Convection usually takes place in gases or liquids (whereas conduction most often takes place in solids) in which the transfer of thermal energy is based on differences in heat..

How does convection air occur?

Convection occurs when heat is transferred through a gas or liquid by the hotter material moving into a cooler area. In meteorology, it is the transfer of heat and other atmospheric properties by the movement of masses of air, particularly in an upward direction.

Which of these is an example of forced convection?

Forced convection is a special type of heat transfer in which fluids are forced to move, in order to increase the heat transfer. This forcing can be done with a ceiling fan, a pump, suction device, or other.

How many types of convection process are there?

two typesThere are two types of convection, and they are: Natural convection. Forced convection.

What factors affect convection?

Spontaneous convection is driven by buoyancy for the most part and surface tension to a lesser extent.exposed surface area.viscosity.density.conductivity (when conductivity is high, there is no need for convection)acceleration due to gravity.

What happens to molecules during convection?

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. Heat energy is transferred from hot places to cooler places by convection. Liquids and gases expand when they are heated. … The denser cold liquid or gas falls into the warm areas.

What is the process of convection?

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. … Convection currents within the earth move layers of magma, and convection in the ocean creates currents.

How does convection impact weather?

The heating of the Earth’s surface and atmosphere by the sun drives convection within the atmosphere and ocean. This convection produces winds and ocean currents. The greater the pressure differences between a low-pressure area and a high-pressure area, the stronger the winds.

Which is faster conduction or convection?

Whereas conduction is a static process, convection is a more efficient method of heat transfer because it adds the element of motion. A convection oven heats food faster than an ordinary one because it has a fan that blows the hot air around.

What is the relationship between convection and condensation?

Answer: The relationship between convection and condensation is that in both there is a heat transfer.

How does convection transfer heat?

Convection is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it. … Convection can also lead to circulation in a liquid, as in the heating of a pot of water over a flame. Heated water expands and becomes more buoyant.