An enthalpy change describes the change in enthalpy observed in the constituents of a thermodynamic system when undergoing a transformation or chemical reaction.

Feb 3, 2026 · Enthalpy, the sum of the internal energy and the product of the pressure and volume of a thermodynamic system.

Enthalpy (H) is the sum of the internal energy (U) and the product of pressure and volume (P V) given by the equation: When a process occurs at constant pressure, the heat evolved (either …

Enthalpy is a state function of a thermodynamic system and depends on other state functions. Mathematically, it is the sum of the internal energy and the product of the pressure and volume …

Enthalpy is the measurement of energy in a thermodynamic system. The quantity of enthalpy equals to the total content of heat of a system, equivalent to the system’s internal energy plus …

Jul 24, 2025 · Enthalpy is the measurement of heat or energy in the thermodynamic system. It is the most fundamental concept in the branch of thermodynamics. It is denoted by the symbol …

Read this tutorial to learn about enthalpy and how it applies to thermodynamics. Learn about the equation and some some of its applications!