Question

Burning of Kerosene in a lantern is an example of _ _ _ _ _ changes.

Answer 1

Hint:
1. Kerosene vapor diffused in air while burn at a maximum flense temperature of $990^{\circ} C.$
2. In a stoichiometric mixture with oxygen the flame temperature of Kerosene can reach $2393^\circ C $
3. Think about what properties change due to burning.

Complete step by step solution:
When the kerosene starts to burn in the lantern, it uses the oxygen in the surrounding and burns giving high temperature and a good amount of light in the surrounding. The oxygen used for burning takes part in a chemical reaction and the reaction forms carbon dioxide and carbon monoxide.The burning of lanterns also forms water vapors as a product of the reaction that takes place in the process.
Chemical change is the change in which a new product is formed from the reaction taking place. One of the examples of the chemical change is burning.
Thus, since, kerosene is changing into new substances after burning. We can conclude that, burning of Kerosene in a lantern is an example of chemical changes.

Additional information:
Other examples of chemical change through burning are:
1. Burning of wood and its conversion into ashes.
2. Burning of candle
3. Rusting of iron
4. Baking a cake etc.

Note:
Reduced supply of oxygen can lead to incomplete combustion of fuel and the production of carbon monoxide. Kerosene-burning devices include considerable amounts of fine particulate matter. Chemical change through burning is a non-reversible process. For example, you cannot turn ashes back into the wood after burning it.