Question

Explain the endothermic reaction terms with examples

Answer 1

The Electrolysis can be considered as the perfect example of the endothermic reaction. The decrease in the temperature can be detected easily by using a thermometer.

The chemical reactions which will involve the exchange of energy are termed to be called as the endothermic reactions.

If the energy is exchanged between the molecules and compounds during a chemical reaction then that type of reaction is called as endothermic reaction as it involves exchange of energy. 

Answer 2

Answer:

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Explanation:

(i) A reaction in which heat is either absorbed from the surrounding or has to be supplied continuously from outside is called as endothermic reaction.

(ii) e.g. melting of ice, dissolution of potassium nitrate in water. During the process of dissolution of potassium nitrate (KNO3 ) in water, heat from the surroundings is absorbed and therefore, the temperature of the resulting solution is less.

(iii) The process in which heat is absorbed from outside is called endothermic process.

(iv) KNO3(s) + H2 O(l) + Heat → KNO3(aq) Potassium nitrate Water Potassium nitrate solution