Question
Define and explain the term enthalpy. ### What is meant by enthalpy of a system ?
✓
Answer
Enthalpy $( H )$ : It is defined as the total energy of a system consisting of internal energy $( U )$ and pressure - volume $( P \times V$ ) type of energy, i.e. enthalpy represents the sum of internal energy $U$ and product $PV$ energy. It is denoted by $H$ and is represented as
Explanation :
Explanation :
- Enthalpy represents total heat content of the system.
- Enthalpy is a thermodynamic state function.
- Enthalpy is an extensive property.
- The absorption of heat by a system increases its enthalpy. Hence enthalpy is called heat content of the system.
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