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WebNov 30, 2024 · The most common vapor is evaporated water – steam or moist. Enthalpy Enthalpy of a system is defined as the mass of the system – m – multiplied by the specific enthalpy – h – of the system and can be expressed as: H = m h (1) where H = enthalpy (kJ) m = mass (kg) h = specific enthalpy (kJ/kg) Specific Enthalpy Specific enthalpy is a ... WebJennifer Jain. 11 years ago. Calorimetry is the science of measuring heat and Enthalpy is the internal energy in the system added to the product of the pressure and volume. At a constant pressure the heat is the same as the enthalpy. Enthalpy is very closely related to heat that is why they relate to each other. WebFeb 15, 2024 · enthalpy, the sum of the internal energy and the product of the pressure and volume of a thermodynamic system. 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 … discount coach prescription frames