Enthalpy and entropy are two important thermodynamic properties that determine the state of a system. They both measure energy, but in different ways. This article will discuss the differences between enthalpy and entropy and how they relate to each other.
About Difference Between Enthalpy And Entropy
| Characteristic | Difference |
|---|---|
| Definition | Enthalpy is the heat content of a system, while Entropy measures its disorder. |
| Unit | Enthalpy is measured in Joules (J), and Entropy in Joules per Kelvin (J/K). |
| Sign | Enthalpy can be positive or negative, while Entropy is always positive. |
| State Variables | Enthalpy depends on pressure and temperature, while Entropy only depends on temperature. |
| Calculation | Enthalpy is calculated by subtracting the internal energy from the product of pressure and volume. Entropy is calculated using thermodynamic equations. |
| Uses | Enthalpy is used to calculate changes in chemical reactions, while Entropy is used to measure randomness. |
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