Question

irreversible and reversible changes speech

Answer 1

Any changes which can be reversed or are a temporary conversion are known as reversible changes. The reactions which are reversible are called reversible reactions. In this reaction, one substance is modified into another form but a new compound is not formed. Processes such as melting, boiling, evaporation, freezing, condensation, dissolution are reversible changes. Few examples are melting of wax, freezing of ice, boiling water which evaporates as steam and condenses back to water.



In contrast to reversible changes, irreversible changes are permanent changes. Reactants react to form an entirely new compound and cannot be reversed. Heating, burning, mixing, powdering are few processes which cause irreversible changes. A common observable example is the cooking of raw egg which can’t be converted back to its original form. Ash obtained by the combustion of paper or any other substances is another example.

Answer 2

❣️Hey Dost ❣️

☑️ ANSWER

➡️ Irreversible changes -

◆Those changes which cannot be reversed

◆if done , cannot be converted back into original form

◆These are permanent changes

◆for example - heating, cooking or when we burn a paper it becomes ash , and we cannot make ash paper again

➡️ reversible-

◆any changes which can be reversed

◆These changes are temporary

◆can be converted back into its original form

◆for example- ice ✔️when we heat it , it turns into water and when we freeze it , it turns into ice again

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