
What does Enthalpy mean? - Physics Stack Exchange
Sep 10, 2017 · Standard definition: Enthalpy is a measurement of energy in a thermodynamic system. It is the thermodynamic quantity equivalent to the internal energy of the system plus the product of …
What exactly is enthalpy? - Physics Stack Exchange
Dec 5, 2016 · What does the term enthalpy really mean and what is its physical interpretation? What does the wikipedia definition of enthalpy mean, which says that $pV$ work in the ...
Arriving at the definition and purpose of enthalpy
Oct 1, 2019 · Enthalpy is the sum of the internal and the flow energy, so enthalpy accounts for all the energy associated with mass flow. The above viewpoint is for a system defined as a region where …
Explain internal energy and enthalpy - Physics Stack Exchange
The internal energy and the enthalpy are thermodynamic potentials. I will explain them as in the book A Modern Course in Statistical Mechanics by L. Reichl, which, I think, is a very intuitive and simple way …
Help me to understand why we have $pV$ in the enthalpy equation
Sep 21, 2024 · But since enthalpy is a state variable, shouldn't different paths give the same enthalpy? Please help me to understand where my understanding of enthalpy is flawed in various ways. Note: …
thermodynamics - Is enthalpy only defined for systems which exchange ...
Apr 16, 2021 · Clearly, in the derivation of enthalpy we have assumed that constant pressure is acting on the system. So, doesn't this mean that enthalpy is only defined for systems which are at isobaric …
Specific total enthalpy VS Specific enthalpy - Physics Stack Exchange
Jul 18, 2019 · What is the difference between specific enthalpy and specific total enthalpy in the context of fluid flow?
thermodynamics - What is enthalpy? - Physics Stack Exchange
Aug 18, 2016 · Enthalpy is the amount of heat energy contained within an arbitrarily defined system. So for example, you define the coffee in the cup to be your system, enthalpy is the state variable that …
Delta H = C_p \\Delta T $ - Physics Stack Exchange
Sep 1, 2015 · The definition of enthalpy as a function of heat capacity and temperature change. $ \\Delta H = C_p \\Delta T $. Does it only apply at constant pressure? In my discussions on this board and …
Derivation regarding Gibbs free energy - Physics Stack Exchange
Apr 23, 2025 · The formula you are looking to derive is actually an immediate consequence of the definition of the Gibbs free energy. To give some background context and motivation, I will show why …