Question
What is meant by irreversible change? Give some examples.

Answer

  1. An irreversible change is a permanent change that cannot be undone, cannot reverse it back to original substance.
  2. In irreversible change new materials are always formed.
  3. Irreversible changes are permanent changes.
  4. Heating, burning, mixing, powdering are few processes which causes irreversible changes.

Examples:

  • burning of paper or wood
  • cooking of raw egg.

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