Question

Which physical and chemical changes occur when lpg comes out of the cylinder and burns?

Answer 1

Explanation:

This is both physical and chemical change 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.

So we can say this is both physical and chemical change.

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Answer 2

Answer:

Explanation:

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 ...