Burning charcoal, wood and coal.
JAMAICA
The energy comes from the heat to melt the iron
fire
heat of fusion
Heat makes a metal expand. If you take a metal ball and an metal loop that the ball fits in and then heat the ball and try to put it back in the loop it will not go back through. :)
JAMAICA
fire
The energy comes from the heat to melt the iron
fire
it can
Although metal can get very hot a microwave does not produce enough energy to heat most metals to their melting points.
After the heat source exceeds the melting point of the metal, by nature the metal will melt.
If enough electrical energy is put into a metal, it can easily melt that metal.
This energy is the enthalpy of fusion (or latent heat of fusion).
Mercury is the only metal liquid at room temperature. Others come close, like Gallium, which will melt in your hand from body heat.
Don't confuse the process of melting, which is caused by heat, with the process of dissolving, which is caused by solvents such as acid. Acid can dissolve metal, but it does not melt metal.
Heat