The liquified petroleum gas (LPG) is the gas which is used for cooking at home. In
the cylinder it comes as a liquid. When it comes out from the cylinder it become a
gas (Change A). Then it burns (Change B). What are the differences between change
A and B?
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The LPG in cylinder is in liquid form because of high pressure. When it comes out from the cylinder, it turns into a gaseous form. Thus, it is a physical change. Process B is a chemical change because burning of gas is a chemical change.
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