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Question

Bharath heated a closed vessel full of water. After some time he observed that the water started boiling. Later there was no water in the vessel.

This is a/an ___.


  1. chemical change.

  2. reversible change.

  3. irreversible change.

  4. cannot be determined.


Solution

The correct option is B

reversible change.


Reversible change refers to changes that can be undone whereas irreversible change refers to the changes that can't be undone.

When water is boiled into steam, it is a reversible change as the steam can be condensed and converted back into water.

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