Thermodynamic property: identify U + p·v Select the thermodynamic property defined as the sum of internal energy (U) and the product of pressure and volume (p·v). Choose the correct option.

ConceptEnthalpy is defined as H = U + p v. It is especially convenient for open systems (flow processes) at approximately constant pressure, where enthalpy changes track heat transfer.

Why others are incorrectWork is a path function; entropy (S) is a different state function relating heat transfer and temperature.

Final Answerenthalpy