Question

What is the correct expression for enthalpy?

Answer 1

The correct expression for enthalpy (H) is:
$H=U+PV$

Where:

• H is the enthalpy of the system.
• U is the internal energy of the system.
• P is the pressure of the system.
• V is the volume of the system.

Enthalpy is a thermodynamic property that represents the total heat content of a system at constant pressure. It is often useful in chemical and physical processes, particularly when analyzing heat transfer and chemical reactions occurring at constant pressure.