Question

which changes in burning of LPG

Answer 1

heyaa dear here is your answer...

... Burning of LPG in a gas stove involves both physical and chemical changes. When LPG comes out of the cylinder it changes from liquid to gaseous state, which is physical change. Then the gas burns in the air which is a chemical change. ... Hence, melting of wax is physical change and burning of wax is chemical change.


hope it will helps u.

Answer 2

Burning of LPG involves both physical and chemical changes because when LPG comes out of cylinder and is converted from liquid to gaseous state it is a physical change.When the gas burns in air it is a chemical change.Similarly ,burning of candle is a physical as well as a chemical change because solid wax changes to liquid form and its form can be regained hence it is a physical change but burning of wax is a chemical change.