Enthalpy And Entropy

1. What is Enthalpy in Simple Terms?

Enthalpy is defined as the total energy contained in a system or the sum of internal energy and the product of pressure and volume of the system.

2. What is Entropy in Simple Terms?

Entropy is the degree of randomness of the system or the thermal energy of system per unit temperature.

3. What is the Relation Between Enthalpy and Entropy?

Relation between enthalpy and entropy is,

ΔG = ΔH – TΔS

where,

• ΔG is Gibb’s Free Energy
• ΔH is Change in Enthalpy
• T is Temperature
• ΔS is Change in Entropy

4. Who Coined the Term Enthalpy?

Term enthalpy was coined by Heike Kamerlingh Onnes.

5. Who Coined the Term Entropy?

Term entropy was coined by Rudolf Clausius.

6. What is the Units of Enthalpy?

Enthalpy is measured in J mol^-1

7. What is the Units of Entropy?

Entropy is measured in J K^-1.

8. What is Nature of Reaction if Enthalpy Change is Negative?

If the enthalpy change is negative, then the reaction is Exothermic Reaction.

9. What is Nature of Reaction if Enthalpy Change is Positive?

If the enthalpy change is positive, then the reaction is Endothermic Reaction.

10. What is the Difference between Entropy and Enthalpy?

The main difference between Enthalpy and Entropy is Enthalpy represents the total heat of a system whereas Entropy is the degree of disorder in the system.

Enthalpy and Entropy are important concepts in thermodynamics that relate heat and work. Enthalpy can be defined as the total energy in a system, whereas entropy is defined as the thermal energy of a system per unit temperature. Thus the major difference between enthalpy and entropy is that enthalpy is a type or kind of energy of the system whereas entropy is only a property of the system as a whole.

In this article, we will learn about Enthalpy, Entropy, the Difference between Enthalpy and Entropy, and others in detail.