evaporation of petrol is physical change.. why
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When petrol evaporate a new substance is formed and it cannot be reversible so it is a physical change
fozia1234:
jo reversible nhi hote wo chemical change h
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Evaporation of petrol is a physical change because no new chemical substance is formed.Burning of LPG is a chemical change because on burning, LPG forms CO2and H2O. ... It is a physical change, because solid vapours and no new chemical substance is formed
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