Why do convection and conduction not happen in a vacuum?

Answer 1

All of those heat transfer methods require a medium - gas, liquid or solid. Heat is transferred from warmer molecules to adjacent cooler ones in conduction. Heat is transferred by moving gas or liquid in convection/advection. Space is essentially a vacuum. Molecules are not dense enough to transfer heat to one another, there is not a dense enough gas to convect - leaving only radiation as the heat transfer method.

Answer 2

Convection is transfer of thermal energy using particles

Conduction is the transfer of thermal energy through a solid

Radiation is the transfer of energy using the waves ex.The waves from the sun in space

Answer 3

The conduction of heat energy requires matter of some sort to convey heat from one area to another. Convection of heat requires the movement of hotter gas/gasses to an area of cooler gas/gasses to convey heat energy. A vacuum has neither matter or gas to provide either process.

Answer 4

Because, basically, there are no molecules in a vacum that can heat up and carry the heat around.

Answer 5

Conduction does not happen in space because there is nothing to keep molecules moving in a confined area. There is no gravity in space to hold elements into a confined area.

Answer 6

Heat conduction and convection do not happen in space. They don't happen because in space there is no air. Heat only transfers in space by radiation.

Answer 7

Because the particles are not close together like they are in a solid.

Answer 8

because i said so you *** ****