Heat of Condensation
| Formula / Notation | ΔH_cond = −ΔH_vap |
|---|---|
| Also Known As | Enthalpy of condensation, latent heat of condensation, heat of liquefaction |
What is Heat of Condensation?
The heat of condensation (enthalpy of condensation) is the amount of heat released when a substance changes from gas to liquid at constant temperature and pressure. It is equal in magnitude but opposite in sign to the heat of vaporization — condensation releases the same energy that vaporization absorbs. Steam condensing releases approximately 2260 J/g at 100°C.
Formula & Notation
Other Names / Synonyms: Enthalpy of condensation, latent heat of condensation, heat of liquefaction
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
The heat of condensation (enthalpy of condensation) is the amount of heat released when a substance changes from gas to liquid at constant temperature and pressure. It is equal in magnitude but opposite in sign to the heat of vaporization — condensation releases the same energy that vaporization absorbs. Steam condensing releases approximately 2260 J/g at 100°C.
Steam heating systems (radiant heating using condensation energy). Steam turbines and power generation. Industrial drying and evaporation processes. Understanding weather and cloud formation. Refrigeration cycle (refrigerant condensation). Distillation condenser design.
Steam condensation on skin releases large amounts of energy — steam burns are more severe than hot water burns at the same temperature. Condensation in pressure vessels can cause water hammer — explosion risk. Industrial steam systems require pressure relief valves and proper insulation.
The formula or notation for Heat of Condensation is: ΔH_cond = −ΔH_vap