Enthalpy is an extensive property; it is proportional to the size of the system (for homogeneous systems). As intensive properties, the specific enthalpy h = H/m is referenced to a unit of mass …

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 …

Oct 11, 2025 · In symbols, the enthalpy, H, equals the sum of the internal energy, E, and the product of the pressure, P, and volume, V, of the system: H = E + PV. According to the law of …

Jul 24, 2025 · As enthalpy is a state function, change in enthalpy (ΔH) will depend on the initial and the final states of the system. Thus, change in enthalpy is represented by ΔH and is given …

When a process occurs at constant pressure, the heat evolved (either released or absorbed) is equal to the change in enthalpy. Enthalpy (H) is the sum of the internal energy (U) and the …

Learn what enthalpy is, its formula, significance in thermodynamics, and real-world applications in engineering and science.

Enthalpy is indeed a technical term … but what you really need to know is this: When a reaction is performed at a constant pressure (the usual condition), the quantity of heat exchanged …

In this tutorial, you will learn about the definition and equation of enthalpy. In addition, you will learn about some of its applications, as it relates to thermodynamics.

Enthalpy, by definition, is the sum of the internal energy of the system and the product of the system's volume and pressure: where U U stands for internal energy, p p for pressure and V V …

However, its equation is: H = U + PV, where H = enthalpy, U = internal energy, P = pressure, and V = volume. Enthalpy belongs to the category of state functions in physical chemistry. …