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Compressibility factor - NCKU
methane, ethane, ethylene, propane, n-butane, i-pentane, n-hexane, nitrogen, carbon dioxide and steam. There are more detailed generalized compressibility factor graphs based on as many as 25 or more different pure gases, such as the Nelson-Obert graphs. Such graphs are said to have an accuracy within
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Equation of state - National Cheng Kung University
www.che.ncku.edu.twThermodynamics Classical · Statistical · Chemical Equilibrium / Non-equilibrium Thermofluids Zeroth · First · Second · Third State: Equation of state Ideal gas · Real gas Phase of matter· Equilibrium
Chapter 9 Adsorption
www.che.ncku.edu.twVapor adsorbs on a solid surface is a spontaneous process - overall free energy change( G) : negative degree of freedom ( S) : decrease, negative ΔGS For G to be negative, H should be negative, that is, adsorption must be an exothermic process. z The situation may be different in the solid/liquid system.
Helmholtz free energy - NCKU
www.che.ncku.edu.twThermodynamics Classical · ... Heat engines · Heat pumps Thermal efficiency ... the letter A as well as the use of name Helmholtz energy.[1] In physics, the letter F is usually used to denote the Helmholtz energy, which is often referred to as the Helmholtz function or simply “free energy."
SECOND-ORDER LINEAR DIFFERENTIAL EQUATIONS
www.che.ncku.edu.twnd-Order ODE - 8 2.2 Linear Independence Two functions, y 1 (x) and y 2 (x), are linearly independent on an interval [x 0, x 1] whenever the relation c 1 y 1 (x) + c 2 y 2 (x) = 0 for all x in the interval implies that c 1 = c 2 = 0. Otherwise, they are linearly dependent. There is an easier way to see if two functions y 1 and y 2
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