Enthalpy Definition (H = U + PV)
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H = U + PV
What each symbol means
| Symbol | What it stands for |
|---|---|
| H | Enthalpy (J) |
| P | Pressure (Pa) |
| U | Internal energy (J) |
| V | Volume (m³) |
When to use this
Defined for any equilibrium state of the system. Most useful at constant pressure for chemical reactions.