Conduction of heat

Conduction of heat is nothing but the transmission of heat from hotter to colder part of a body without transfer of particles of the material medium.

If we put a spoon in vessel which is heating, after sometime the spoon gets heated, i.e., the heat is travelled from the vessel to spoon, i.e., from hotter body to colder body. But this process takes in moderately slow and gradual manner. So this process of transmission of heat is called thermal conduction

If one end of a metal rod is placed in a flame, then the atoms at the end of the rod gets heat energy and gets vibrated, this vibrational atoms with increased amplitude collide with the adjacent atoms, then they also get vibrated. Like that this vibration causes the adjacent atoms to be vibrated. Like this, the total atoms in the material medium gets vibrated and heated, but atoms position is not changed,i.e., they are in equilbrium position. As the atoms in the solid are in arrangement manner and adjusted so that conduction is possible only in solids. Conduction is different in different solids.