Question

Is melting of wax a reversible or irreversible change?

Answer 1

Reversible and irreversible changes:

1. Reversible alterations are any changes that can be undone or are temporary conversions. Melting and boiling of water, wax melting, and ice freezing are some examples.
2. A reversible change changes physical appearance and is simple to reverse. It can change the condition of a substance, whether it be solid, liquid, or gas.
3. Also, it has no effect on the amount of matter in a substance. A reversible change does not result in the formation of new substances.
4. Irreversible changes are considered permanent changes. Reactants combine to generate a whole new compound that can not be undone.
5. Irreversible modifications are caused by procedures including heating, burning, combining, and powdering. For example, burning a candle or a piece of paper.
6. An irreversible change alters the chemical appearance, and it is difficult to reverse the process. An irreversible change also results in the creation of new compounds.
7. Wax melting is simply a phase change process. Wax's physical qualities change, while its chemical properties stay unchanged. Because wax melts when its temperature rises, it returns to its former state when cooled. As a result, it is a change that can be reversed.

Therefore, the melting of wax is a reversible change.