Enthalpie entropy
Reference data et engineering information about enthalpie entropy pour thermodynamics applications.
enthalpyentropyCalculatriceTableau de données
Overview
Enthalpy () and entropy () are fundamental thermodynamic properties used to analyze energy transfer and process efficiency.
Key Formulas
Enthalpy
Total heat content of a system.
Entropy
Measure of irreversibility.
Gibbs Free Energy
Maximum non-expansion work.
Helmholtz Free Energy
Maximum work at constant volume.
Variables
| Symbol | Description | Unit |
|---|---|---|
| Enthalpy | J | |
| Internal energy | J | |
| Pressure | Pa | |
| Volume | m³ | |
| Entropy | J/K | |
| Gibbs free energy | J | |
| Temperature | K |
Reference Data
18 lignes
Temperature(°C) | Pressure(MPa) | Enthalpy (h)(kJ/kg) | Entropy (s)(kJ/(kg·K)) | Phase |
|---|---|---|---|---|
| 100 | 0.1013 | 2676.1 | 7.3549 | Saturated vapor |
| 150 | 0.4762 | 2746.6 | 6.8372 | Saturated vapor |
| 200 | 1.5549 | 2793.2 | 6.4323 | Saturated vapor |
| 250 | 3.9762 | 2803.2 | 6.0747 | Saturated vapor |
| 300 | 8.5879 | 2751 | 5.7078 | Saturated vapor |
| 350 | 16.529 | 2567.6 | 5.2158 | Saturated vapor |
| 374 | 22.064 | 2099.3 | 4.4298 | Critical point |
| 200 | 0.1 | 2875.3 | 7.8343 | Superheated |
| 300 | 0.1 | 3074.5 | 8.2158 | Superheated |
| 200 | 1 | 2827.9 | 6.694 | Superheated |
| 300 | 1 | 3051.2 | 7.1229 | Superheated |
| 400 | 1 | 3264.5 | 7.4651 | Superheated |
| 300 | 5 | 2924.5 | 6.2084 | Superheated |
| 400 | 5 | 3195.7 | 6.6459 | Superheated |
| 500 | 5 | 3433.8 | 6.9759 | Superheated |
| 400 | 10 | 3097.5 | 6.2141 | Superheated |
| 500 | 10 | 3375.1 | 6.5995 | Superheated |
| 600 | 10 | 3625.8 | 6.9029 | Superheated |
Source: engineeringtoolbox.com