Enthalpy: Is the total heat content of

Enthalpy is the total heat content of a system, which helps us understand different energy relations. Learn standard conditions for measuring enthalpy and FAQs. Enthalpy is a thermodynamic property that describes the total energy of a system, including both internal energy and work done on or by the system. Enthalpy (H), is a property commonly used to describe the thermodynamics of chemical and physical processes. It is the total of a thermodynamic system’s internal energy as well as the volume times pressure ratio. It is a property or state function that is similar to energy; it has dimensions similar to energy (and is therefore measured in units of joules or ergs), and its value is solely dependent on the temperature, pressure, and composition of the system, rather than on its history. Enthalpy is an energy-like property or state function —it has the dimensions of energy (and is thus measured in units of joules or ergs), and its value is determined entirely by the temperature, pressure, and composition of the system and not by its history.