Reversible Changes and Irreversible Changes: Differences and Examples (2024)

Separation of Substances

‘Change is constant’. Changes happen all around us, even within us. Most of them are irreversible but some of them are reversible changes. Yes. Let’s learn about reversible changes and irreversible changes and understand the difference between them with a lot of examples.

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All changes in the world are one of the two types – Reversible changes and irreversible changes. A change which can happen backward, that is, can be reversed is called a reversible change. If you keep water in the freezer for some time, it transforms into ice. But as soon as you take it out of the freezer, it turns into water again. This is a reversible change. Similarly, if you boil water, it evaporates and becomes water vapor. When you cool this vapor down, it turns back to water.

A change which cannot happen backward, that is, it cannot be reversed is called an irreversible change.When you burn a piece of paper, it turns to ash. It cannot become paper again. Your height cannot decrease. These are irreversible changes. They cannot be reversed at all.

To understand reversible changes and irreversible changes better, we need to know what physical changes and chemical changes are.

Solution: b) Water freezes, that is, it turns to ice, after keeping in the freezer for some time. But it can turn back to liquid water after removing from the freezer. Therefore, freezing is an example of reversible changes.