What is the relationship between enthalpy (H), internal energy (U), and pressure
Practice Questions
Q1
What is the relationship between enthalpy (H), internal energy (U), and pressure-volume work (PV)?
H = U + PV
H = U - PV
H = U * PV
H = U / PV
Questions & Step-by-Step Solutions
What is the relationship between enthalpy (H), internal energy (U), and pressure-volume work (PV)?
Step 1: Understand that enthalpy (H) is a measure of total energy in a system.
Step 2: Know that internal energy (U) is the energy contained within the system, excluding any energy related to pressure and volume.
Step 3: Recognize that pressure-volume work (PV) is the work done by or on the system due to changes in pressure and volume.
Step 4: Learn the formula that connects these three concepts: H = U + PV.
Step 5: Realize that this formula means that the total energy (enthalpy) is made up of the internal energy plus the energy associated with pressure and volume work.
