| No | Title | ID | Type | SubTopic | Topic | Reference: | Minor Subject | Subject |
| 3205 | Enthalpy-concentration Diagram for Aqueous Sulfuric Acid at | 123 | Figure | Enthalpy-concentration Diagram | Mass/Energy Balances | Hougen, Fig 3-38 | Thermodynamics | Mass/Energy Balances and Thermodynamics |