Question

give two differences between reversible and Irreversible changes

Answer 1

ANSWER:


▪A reversible change is the one in which a substance that is undergoing the change can be recovered in its original form.

For example, when ice cubes are kept at room temperature for some time, they melt to give water. If the same tray containing water is kept in a freezer, then the water turns into ice. As the ice cubes are re-obtained when the tray is kept in the freezer, the change is reversible.

▪The change in which a substance that is undergoing the change cannot be re-obtained is known as an irreversible change. Hence, it can be said that an irreversible change is the one in which a substance that is undergoing the change cannot be recovered in its original form.

For example, when an egg is boiled, it cannot be changed backed into its raw form. Hence it is an irreversible change.


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Answer 2

Answer is given below

Explanation:

• Any change that is reversible or temporary is called a reversible change. Reversible reactions are called reversible reactions. In this reaction, one substance is converted into another substance but no new compound is formed.
• Reversible changes in processes such as thawing, boiling, evaporation, freezing, extraction, thawing. Some examples are wax melting, ice freezing, and hot water evaporating back into the water.                                             A + B ⇌ C + D

• Unlike reversible changes, irreversible changes are permanent changes. Reactors form a completely new compound and are not reversible. Heating, combustion, mixing, and powdering can cause irreversible changes.
• Cooking raw eggs is a common observable example, they cannot be converted to their original form. Another example is ash obtained by the combustion of paper or other materials.

                                                    A → B + C

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reversible and Irreversible changes

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