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What is the difference between conduction and convection in terms of the atoms and molecules in a substance?
Wiki User
∙ 14y ago
Copy, paste this web address to see pictures of each type of energy transfer!!
http://www.mansfieldct.org/schools/mms/staff/hand/convcondrad.htm
Convection is the transfer of heat by the actual movement of the warmed matter. Heat leaves the coffee cup as the currents of steam and air rise. Convection is the transfer of heat energy in a gas or liquid by movement of currents. (It can also happen is some solids, like sand.) The heat moves with the fluid. Consider this: convection is responsible for making macaroni rise and fall in a pot of heated water. The warmer portions of the water are less dense and therefore, they rise. Meanwhile, the cooler portions of the water fall because they are denser
Conduction is the transfer of energy through matter from particle to particle. It is the transfer and distribution of heat energy from atom to atom within a substance. For example, a spoon in a cup of hot soup becomes warmer because the heat from the soup is conducted along the spoon. Conduction is most effective in solids-but it can happen in fluids. Fun fact: Have you ever noticed that metals tend to feel cold? Believe it or not, they are not colder! They only feel colder because they conduct heat away from your hand. You perceive the heat that is leaving your hand as cold.
Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of radiation that is radiated through space to our planet without the aid of fluids or solids. The energy travels through nothingness! Just think of it! The sun transfers heat through 93 million miles of space. Because there are no solids (like a huge spoon) touching the sun and our planet, conduction is not responsible for bringing heat to Earth. Since there are no fluids (like air and water) in space, convection is not responsible for transferring the heat. Thus, radiation brings heat to our planet.
http://www.mansfieldct.org/schools/mms/staff/hand/convcondrad.htm
Copy, paste this web address to see pictures of each type of energy transfer!!
http://www.mansfieldct.org/schools/mms/staff/hand/convcondrad.htm
Convection is the transfer of heat by the actual movement of the warmed matter. Heat leaves the coffee cup as the currents of steam and air rise. Convection is the transfer of heat energy in a gas or liquid by movement of currents. (It can also happen is some solids, like sand.) The heat moves with the fluid. Consider this: convection is responsible for making macaroni rise and fall in a pot of heated water. The warmer portions of the water are less dense and therefore, they rise. Meanwhile, the cooler portions of the water fall because they are denser
Conduction is the transfer of energy through matter from particle to particle. It is the transfer and distribution of heat energy from atom to atom within a substance. For example, a spoon in a cup of hot soup becomes warmer because the heat from the soup is conducted along the spoon. Conduction is most effective in solids-but it can happen in fluids. Fun fact: Have you ever noticed that metals tend to feel cold? Believe it or not, they are not colder! They only feel colder because they conduct heat away from your hand. You perceive the heat that is leaving your hand as cold.
Radiation: Electromagnetic waves that directly transport ENERGY through space. Sunlight is a form of radiation that is radiated through space to our planet without the aid of fluids or solids. The energy travels through nothingness! Just think of it! The sun transfers heat through 93 million miles of space. Because there are no solids (like a huge spoon) touching the sun and our planet, conduction is not responsible for bringing heat to Earth. Since there are no fluids (like air and water) in space, convection is not responsible for transferring the heat. Thus, radiation brings heat to our planet.
http://www.mansfieldct.org/schools/mms/staff/hand/convcondrad.htm
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoConductors are made from materials... Everything is. It's different from an insulator in that it holds onto it's electrons more strongly.
Wiki User
∙ 11y agoIf you mean, to transfer heat by convection, that is only possible in liquids or gases. Conduction occurs in solids, liquids and gases.
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Is there a chemical difference between the gauseos and liquid state of the same substance?
There is no chemical difference, the only difference is the speed in which the molecules of the substances move. Slower molecules can be solid or liquid and very high speed molecules can be gas.
How does the viscosity of a fluid affect its rate of convection?
The more viscous a substance is, the closer together its molecules are, the more energy required to excite the molecules. Therefore, higher viscosity equals a lower excitability.
What is the smallest part of a substance that has all the porperties of the substance?
Molecules are the smallest part of a substance. Molecules have all the properties of a substance.
What mediums can heat travel through?
Heat can move in three ways: conduction, convection, and radiation. In conduction, physical contact between two surfaces is required. The molecules of the heat source bang into the molecules of the heat sink, imparting some of their energy in the process, thus reducing the temperature of the heat source while increasing that of the heat sink. Heat can move by conduction through pretty much any mass, whether solid, liquid, gas, supercritical fluid, or plasma. In convection, a substance is heated by the heat source and then moved to another location where it can release some of its energy as heat. In the case of natural convection, the motion is a result of buoyancy forces, while in forced convection something like a fan or pump is responsible for moving the heated mass. For heat to travel in this manner the medium must be capable of movement - which generally excludes solids but includes gases, liquids, supercritical fluids, and plasmas. In radiation no medium is required to get the energy between the source and the sink. Heat can travel via radiation through a vacuum.
What happens to thermal energy during the process of conduction?
conduction occurs when a substance is heated, particles will gain more energy and vibrate more. These molecules then bump into nearby particles and transfer some of their energy to them. This then continues and passes the energy from the hot end down to the colder end of the substance. argo the thermal energy is represented as an increasing variation from base levels of vibration.
Is the transfer of temperature from one substance to another called convection?
No, that is called conduction.
What is the difference between convection and conduction?
Convection. This happens in a fluid (gas or liquid), When a mass of fluid is heated it expands and becomes less dense than the unheated fluid round it. This density difference causes it to rise against gravity, bodily moving the whole mass of warm fluid. Obviously convection could not happen where there was no gravity (eg in a spacecraft orbiting Earth). Conduction. This happens because heat energy causes atoms or molecules to vibrate faster. As they do so they bump into the atom or molecule next to them and cause this to vibrate more. In this way the energy is passed along inside the body of the substance. Obviously this means while convection can not happen in space, conduction and and does. Convection and conduction are related the vibrational energy of conduction is what causes the fluid to expand, its molecules vibrating harder take up more room. Also understand that Heat energy is actually a specific form of Kinetic energy - an energy of motion - but happening at the atomic scale.
What are the 3 ways that heat can move on from one substance to another?
Conduction convection and radiation
What are 3 ways thermal energy is transfered from one substance to the other?
Convection. Conduction. Radiation
How does conduction heat things?
The vibrating atoms/molecules in the hot sustance make the atoms/molecules in the cooler substance vibrate and this vibration gradually spreads along the substance.
What are the three ways that heat can move from one substance to another?
Heat moves in three ways: Radiation, conduction, and convection.
What are the two dominant mechanisms of heat transfer around the world?
Movement of heat around the earth happens mostly via conduction and convection. Conduction involves the transfer of heat as kinetic motion of molecules through most any substance, mostly visible in red-hot metals. Convection involves the movement of air as it heats unevenly, causing warm air to rise and cool air to fall.
What is the difference between heat transfer and mass transfer?
Heat transfer deals with the movement of heat and temperature gradients. The three types of heat transfer are conduction, convection, and radiation. Mass transfer deals with concentrations of a particular substance. Types of mass transfer include diffusion and convection.
What are the three different ways that thermal energy is transferred?
the process whereby heat moves from one body or substance to another by radiation, conduction, convection, or a combination of these methods. Heat transfer flows from a body with high energy (higher temperature) to lower energy (lower temperature).
How thermal energy transfers?
It can be transferred in three ways: Conduction, convection, and radiation. Conduction is transfer through a substance by contact between atoms. Convection is transfer in a gas (air) by causing air currents due to density effects. Convection can also happen in fluids like water. Radiation is by electromagnetic waves at the infra-red frequencies.
Is the suns energy radiant?
Yes. Here's a logical proof: There are three ways to transfer energy from place to place: --Conduction, --Convection, --Radiation. Conduction and convection need a 'medium' ... a substance to conduct or convect through. Radiation doesn't need anything to travel through. There is no medium ... no substance ... in the space between the sun and the earth, but heat and light from the sun reach the earth constantly. Since there is no medium for it to travel through, it can't be getting here by means of conduction or convection. The only possibility is radiation.
How heat is transferred in the troposphere?
Heat is transferred in three ways: Radiation, conduction, and convection. Radiation is the direct transfer of energy. The direct transfer of heat from One Substance to Another Substance that is touching is called conduction.=] iHope that helped you! x3 (~lOvee carOlina~] xD
