Reversible and irreversible change?
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Introduction. Irreversible changes, like burning, cannot be undone. Reversible changes, like melting and dissolving, can be changed back again. Mixtures can be separated out by methods like filtering and evaporating.
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Reversible changes are the changes which can be reversed and are also known as physical changes.
For example- boiling of water, making aeroplane from plain paper,etc
When we boil water it get converted into water vapour by the process of evaporation. We can again obtain water in its liquid form by the process of condensation. So this is a reveesible change.
Irreversible changes are the changes which cannot be reversed and are also known as chemical changes.
For example-- burning of wood, cooking vegetables etc.
When we burn wood it gets converted into ashes. Wood cannot be obtained again from these ashes. Hence it is an irreversible change.
For example- boiling of water, making aeroplane from plain paper,etc
When we boil water it get converted into water vapour by the process of evaporation. We can again obtain water in its liquid form by the process of condensation. So this is a reveesible change.
Irreversible changes are the changes which cannot be reversed and are also known as chemical changes.
For example-- burning of wood, cooking vegetables etc.
When we burn wood it gets converted into ashes. Wood cannot be obtained again from these ashes. Hence it is an irreversible change.
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