Question

Q8: Conversion of water into water vapour is a reversible change. Why
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Answer 1

Answer:

Conversion of water into water vapour is a reversible change because water vapour when cooled gets converted intoliquid water again. Q9: A blacksmith heats a piece of iron till it becomes red hot and then beats it into a desired shape.

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Answer 2

Answer:

Because we can also convert water vapours in water through condensation in which the vapours are convert in water at a lower temperature.

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