Heat transfer through conduction takes place predominantly in which of the following?
Solid
Can’t be said
Conduction is the process in which transfer of energy without the permanent displacement of atoms of the substance, i.e by transfer of vibrations to the surrounding atoms.
Only in the case of solids, the atoms are fixed and cannot displace permanently. So, Conduction is prominent in solids.
Iron being a solid the prominent mode of heat transfer is conduction.