Which relationship is always correct?
A)potential energy + kinetic energy = constant
B)Δ = q + W
C)ΔU = ΔH - PΔV
D)H = U + PV
E)ΔH = q V

Question

Quizplus · Accepted Answer

H = U + PV is a fundamental equation in thermodynamics known as the enthalpy equation or the first law of thermodynamics. It states that the change in enthalpy (H) of a system is equal to the change in internal energy (U) plus the product of pressure (P) and change in volume (V). This relationship is always correct for any process, including reversible and irreversible processes.

Which Relationship Is Always Correct