If Air Is A Fluid, Why Isn’t Convection Responsible For Transferring Heat To Earth From The Sun? (Question)

A warm or hot thing emits infrared electromagnetic radiation, which may be absorbed by another object when they are separated by a certain distance. Given that the air is a fluid, how come convection isn’t responsible for moving heat from the sun to the earth? Because there is no air in space, the source of the radiation must be electromagnetic radiation.

How does convection occur in liquids?

It is called convection when particles with a high amount of heat energy in a liquid or gas move and take the place of particles with a lower amount of heat energy. Convection is the process through which heat energy is moved from hot to colder environments. When liquids and gases are heated, they expand in volume. As a result, the particles take up a greater amount of space.

What type of heat transfer is responsible to the transfer of heat from the Sun to Earth?

Radiation is the transport of thermal energy through space as a result of the action of electromagnetic waves. The vast majority of the electromagnetic energy emitted by the sun and reaching the earth is unseen. Only a small percentage of the energy is emitted as visible light.

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How does convection affect the temperature of the earth?

In the Earth’s atmosphere, convection is a critical phenomenon that aids in the redistribution of energy away from hotter places to cooler portions of the planet, assisting in the circulation of heat and eliminating severe temperature disparities.

Why can’t convection happen in solids?

Due to the fact that neither bulk current flows nor considerable diffusion of matter can occur in most solids, convection cannot occur in these materials.

How does convection work in the air?

Convection occurs because warm air is less dense than the cold air surrounding it, causing it to be lighter and so rise or fall in the atmosphere as a result of its density difference. In our atmosphere, there is a continual balancing act going on all the time as moist, warm air rises and chilly, denser air descends, creating a permanent state of equilibrium.

Why does convection only occur in liquids or gases?

Convection can only occur in fluids, or materials that have the ability to flow. Liquids (think of water) and gases (think of air) may both flow (think of wind). Solids become fixed in place and are unable to flow, and since they are unable to move, there is no convection. Conduction is the method through which heat passes through solids.

Is convection heat transferred?

Convective heat transfer is the transmission of heat between two bodies that occurs as a result of the movement of currents of flowing gas or liquid. Because it maintains a sharp temperature differential between the body and the surrounding air or water, convection is an extremely effective method of heat transmission.

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Why is convection is a method of heat transfer?

Convection is the process through which thermal energy is transported from hot to cold environments. When warmer parts of a liquid or gas rise to the surface of a colder area of the liquid or gas, convection occurs. After then, a cooler liquid or gas takes the place of the warmer portions that have climbed higher in the atmosphere. As a result, a continuous circulation pattern is created.

What is convection how heat is transferred by this method?

Convection is the mechanism through which heat is transferred from one area to another by the movement of fluids in a closed system. The flowing fluid brings with it a lot of energy. During the flow of the fluid, it moves from one high-temperature region to another low-temperature one

How does air convection affect the earth?

Air Convection is a term used to describe the movement of air. Throughout the earth’s atmosphere, convection is responsible for the movement of air. Heat from the sun warms and expands the air near the equator, making it less dense and causing it to ascend upward. Convection currents in the atmosphere are also responsible for keeping clouds aloft.

How does convection work on earth?

Convection currents are produced as a result of temperature differences. Stuff that is lighter (less dense) and heated rises, whereas material that is heavier (more dense) and cool sinks. This movement is responsible for the formation of convection currents, which are patterns of circulation in the atmosphere, water, and the Earth’s mantle that are caused by convection currents.

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How convection and conduction affect the temperature in the atmosphere?

The processes of conduction, radiation, and convection all contribute to the movement of heat between the Earth’s surface and the atmosphere. In the upper atmosphere, conduction has a direct effect on air temperature only a few millimeters into the atmosphere. Solar radiation heats the earth during the day, which then heats the air directly above it by conduction.

Why does convection only occur in gases and liquids but not solids?

Convection happens exclusively in fluids, not in solids (liquids and gases). Heat is transferred to liquid at the bottom of a flask, causing its particles to become lighter and hence rise to the top of the flask as it is heated. Convection cannot occur in a solid because the atoms in the solid are unable to move around and thus no bulk current can flow.

Can you have transfer heat by convection in a solid?

Convection is a phenomenon caused by the large-scale movement of materials in fluids. Solids are incapable of transferring heat by convection.

In which of these can convection not occur gases solids liquids fluids?

In fluid mechanics, convection is the transmission of heat energy caused by the movement of particles in a fluid. As a result, convection cannot occur in solids since the solid particles do not behave like fluids. Because of this, convection occurs exclusively in liquids and gases.

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