Question

Ravi saw a burning candle. He observed that some of the wax was melting and some of it was helping the candle to burn.

i) What type of changes candle is undergoing in both the cases?
ii) How do these changes differ from each other?
iii) Give any other example of each of these changes.



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Answer 1

1) BURNING OF CANDLE IS IRREVERSIBLE CHANGE

2) IRREVERSIBLE CHANGES CANNOT BE RE DONE

MEANWHILE REVERSIBLE PROCESS CAN BE RE DONE AGAIN AND AGAIN

3) OTHER EXAMPLES ARE:- BURNING OF COAL, FORMATION OF SOIL etc

ALL THESE PROCESS ARE IRREVERSIBLE

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Answer 2

Answer:

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