Question

Differentiate between exothermic and endothermic reactions in two column with one example. For 3 marks ​

Answer 1

Answer:

So the main difference between these terms lies in the form of energy used or released during any chemical reaction. ... For instance melting of ice cubes or evaporation of liquid water is an endothermic reaction, on the other hand, if the water freezes into ice cubes it is called as an exothermic reaction.

Explanation:

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Answer 2

Answer:

• So the main difference between these terms lies in the form of energy used or released during any chemical reaction. ... For instance melting of ice cubes or evaporation of liquid water is an endothermic reaction, on the other hand, if the water freezes into ice cubes it is called as an exothermic reaction.

Explanation:

• Difference Between Endothermic and Exothermic Reactions
• February 2, 2018 By Rachna C Leave a Comment

Endo_Vs_Exo_content_img

• Such chemical reaction in which the energy is absorbed in the form of heat is known as the endothermic reaction, while such chemical reactions in which energy is released or evolved in the form of heat is known as the exothermic reaction. So the main difference between these terms lies in the form of energy used or released during any chemical reaction.

• Chemical reactions not only takes place in laboratories, they happen in ones day to day routines, in our body also. For instance melting of ice cubes or evaporation of liquid water is an endothermic reaction, on the other hand, if the water freezes into ice cubes it is called as an exothermic reaction.

• There is a lot of energy requirement during any chemical reactions, which exist in the bond holding the molecules together. So when the reaction takes place between molecules and compounds (reactants), which results in breaking of bonds and thus releases immense energy.

• On the other hand, the new chemical bonds (products) which are formed after the reaction also requires energy and hence the total energy is calculated by the number of bonds broken and formed. This process in the chemical reaction is termed as a heat of reaction also known as enthalpy and is denoted by ‘ΔH‘. and expressed in kJ/mol.

• In this content, we will be focusing on the key differences between the two terms along with few examples and with the brief description of them.

• Content: Endothermic Vs Exothermic Reaction
• Comparison Chart
• Definition
• Key Differences
• Conclusion

Comparison Chart

• BASIS FOR COMPARISON ENDOTHERMIC REACTIONS EXOTHERMIC REACTIONS
• Meaning Chemical reactions involving the use of energy at the time of dissociation to form a new chemical bond is known as the endothermic reaction. Chemical reactions where the energy is released or evolved in the form of heat is known as the exothermic reaction.