Why melting of wax is difference than burning of wax?

Answer 1

Melting doesn't change the composition of a compound (substance).
Burning is a chemical reaction, an oxidation - new compounds are formed.

Answer 2

Wax on being melted is converted from a solid state to a liquid state and can be brought back to its original state on cooling, whereas wax on burning you are combining oxygen with paraffin. The reaction creates carbon dioxide, water and some soot + a release of energy.hence the wax cannot be brought back to its original state.

Answer 3

Only PURE compounds have sharp, unique melting and freezing points of the same value.

The substance of most waxes is not pure, but their melting point (or -trajectum) is about the same as its freezing 'point'/trajectum.

Example:

Beeswax is mainly composed of the ester myricyl palmitate.

Its melting 'point' is 62-65 °C (= trajectum, range), and it's also freezing when cooling from 65 to 62 °C

Answer 4

Melting wax will leave a liquid wax in the container. Burning wax (candle, for example) will mean that there will not be any wax left in the container. The wax has been used up in producing light.

Answer 5

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Answer 6

Wax melts because it has been exposed to enough heat to reach its melting point. The rate at which this happens depends on the composition of the wax.

Answer 7

Melting is a change from a solid to a liquid. The molecules remain the same. Burning is a chemical reaction usually involving oxygen. It then changes into something else.

Answer 8

Melting wax is merely changing the shape of the wax, whereas burning wax chemically changes the wax molecules.

Answer 9

the intermolecule forces holding the wax together break at 58 degrees.