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The issue of enthalpy deficit

2012-01-09View Original

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Does anyone know how the “enthalpy deficit” of a distillation column is calculated? The more detailed, the better
Reply #22012-01-17
I didn’t understand your question. The “enthalpy difference” indicates whether a system absorbs or releases heat; for a system, if its enthalpy decreases, it means it is releasing heat. The opposite is heat absorption
Reply #32012-01-17
It is estimated that the concept of thermoeconomics, namely enthalpy deficit, has been introduced; as the name suggests, it represents the lack of enthalpy in a system, or in other words, the external heat required.
Reply #42012-02-23
It is a concept from CGCC – enthalpy deficit
Reply #52012-02-24
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Reply #62012-03-02
I have a question for you: As you said, the \"enthalpy difference\" reflects whether a system absorbs or releases heat. For a system, if its enthalpy decreases, it means it is releasing heat. The opposite is heat absorption. The definition of heat is: the amount of heat absorbed or released by an object is called heat. So, what is the difference between heat and enthalpy difference?
Reply #72012-03-02
“The “enthalpy difference” reflects the heat absorbed or released by a system; for a system, if its enthalpy decreases, it means heat is being released to the outside. Conversely, it is endothermic. Heat is defined as the amount of heat that a substance absorbs or releases. So, what is the difference between heat and enthalpy difference?

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