The chemical equation for given process, table salt dissolved in water has to be written and identified whether it belongs to exothermic or endothermic reaction. Concept Introduction: Energy: It is the capacity or ability to do work. Joule (J) is the SI unit of energy. Exothermic reaction: Exothermic reactions are those in which evolution of heat takes place during chemical reaction. Endothermic reaction: Endothermic reactions are chemical reactions in which heat is absorbed during chemical reaction. In such type of reactions, external energy is needed. System is nothing but our focus of study, anything other from system is called surroundings.

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Chapter 4, Problem 48QRT

Interpretation Introduction

Interpretation:

The chemical equation for given process, table salt dissolved in water has to be written and identified whether it belongs to exothermic or endothermic reaction.

Concept Introduction:

Energy: It is the capacity or ability to do work. Joule (J) is the SI unit of energy.

Exothermic reaction: Exothermic reactions are those in which evolution of heat takes place during chemical reaction.

Endothermic reaction: Endothermic reactions are chemical reactions in which heat is absorbed during chemical reaction. In such type of reactions, external energy is needed.

System is nothing but our focus of study, anything other from system is called surroundings.

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