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Is conduction faster in metals than in other solids because metals have free electrons that transfer thermal energy?
Wiki User
∙ 11y ago
Yes, the free electrons in metals are responsible for the high thermal conductivity.
Wiki User
∙ 11y ago
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Why is conduction faster in metals?
Metals are generally good conductors because they have many free electrons that are able to efficiently transfer thermal energy.
How does hurricanes transfer thermal energy?
conduction and convection
Transfer of energy as heat through a material?
Thermal Conduction
What is the molecular make-up of a material that would be a good thermal conductor?
Thermal conduction is caused by two different things: Phonon conduction and Electron conduction. Electrons are thermal conductors because electrons have mass and velocity, ie. they have momentum. Thermal energy can be carried by these electrons. What makes a good thermal conductor through the energy carrying of electrons is good electrical conductor. This is because if the electrons are bouncing all around the inside of the conductor, they are transfering their energy to the molecules/atoms of the conductor and not to the other "side". More technically, the crystal lattice of the conductor must be free of as many defects as possible, and the lattice atoms must have electrons in the the conduction band. The other thermal conductor is phonons. Phonons are basically a name we give to the movement of the lattice itself. Think of phonons as waves in a pool. The better the phonon conductivity, the better the thermal conduction. Think of phonons as a rope that is held at noth ends and you whip a wave across it. If there is a lot of tention, the wave will quickly travel to the other side. If it is loose, the wave will travel slowly and maybe not even make it to the other side. The technical equivalent is high bond strengths in the lattice. High bond strength between the atoms means that the phonons will travel faster because the movement of one atom will greatly affect the movement of the neighboring atoms. This is why diamond is such a good thermal conductor, it has very very strong bonds.
What is heat transfer by radiation?
All objects transfer thermal energy by infra-red radiation. The hotter an object is, the more infra-red radiation it gives off. No particles are involved in radiation, unlike conduction and convection. This means that thermal energy transfer by radiation can even work in space, but conduction and convection cannot. One good example is the sun. Even though it is millions of kilometers away in space, we can still feel its heat. The thermal energy is transferred by electromagnetic waves.
Why is conduction faster in metals?
Metals are generally good conductors because they have many free electrons that are able to efficiently transfer thermal energy.
What is the term for heat transfer of direct contact?
Conduction is the term for heat transfer because of direct contact.
What is the definition of thermal conduction?
The definition of thermal conduction is heat transfer. Thermal conduction is when heat is transferred from one source to another.
What thermal transfer does loft insulation reduce?
conduction
How does hurricanes transfer thermal energy?
conduction and convection
Transfer of thermal energy through contact?
conduction
Is thermal energy transferred through conduction convection or radiation?
thermal energy can transfer through conduction, convention and radiation
The transfer of thermal energy in matter with no overall transfer of matter is called?
conduction
The transfer of thermal energy with no overall transfer of matter?
the transfer of heat through empty space is called RADIATION.
The transfer of thermal energy through a material is called what?
conduction
Transfer of energy as heat through a material?
Thermal Conduction
Transfer of heat within a material?
You think to thermal conduction.
