constant-enthalpy process

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• Enthalpy–entropy chart — The Mollier Enthalpy Entropy Diagram for water and steam. The dryness fraction , x, gives the fraction by mass of gaseous water in the wet region, the remainder being droplets of liquid. An enthalpy–entropy chart, also known as the h–s chart or… …   Wikipedia

• Enthalpy — Thermodynamics …   Wikipedia

• enthalpy — /en thal pee, en thal /, n., pl. enthalpies. Thermodynamics. a quantity associated with a thermodynamic system, expressed as the internal energy of a system plus the product of the pressure and volume of the system, having the property that… …   Universalium

• Enthalpy of fusion — The standard enthalpy of fusion (symbol: Delta{}H {fus}), also known as the heat of fusion or specific melting heat, is the amount of thermal energy which must be absorbed or evolved for 1 mole of a substance to change states from a solid to a… …   Wikipedia

• Isochoric process — An isochoric process, also called a constant volume process, an isovolumetric process, or an isometric process, is a thermodynamic process during which the volume of the closed system undergoing such a process remains constant. An isochoric… …   Wikipedia

• Acid dissociation constant — Acetic acid, a weak acid, donates a proton (hydrogen ion, high …   Wikipedia

• Isobaric process — An isobaric process is a thermodynamic process in which the pressure stays constant: Delta p = 0 The term derives from the Greek isos, equal, and barus, heavy. The heat transferred to the system does work but also changes the internal energy of… …   Wikipedia

• Spontaneous process — A spontaneous process is the time evolution of a system in which it releases free energy (most often as heat) and moves to a lower, more thermodynamically stable, energy state. [ [http://www.chem.purdue.edu/gchelp/gloss/sponprocess.html… …   Wikipedia

• Thermodynamic process — A thermodynamic process may be defined as the energetic evolution of a thermodynamic system proceeding from an initial state to a final state. Paths through the space of thermodynamic variables are often specified by holding certain thermodynamic …   Wikipedia

• Isentropic process — In thermodynamics, an isentropic process ( iso = equal (Greek); entropy = disorder ) is one during which the entropy of the system remains constant. [Van Wylen, G.J. and Sonntag, R.E., Fundamentals of Classical Thermodynamics , Section 7.4]… …   Wikipedia

• Calorimeter constant — A calorimeter constant (denoted C cal) is a constant that quantifies the heat capacity of a calorimeter. It may be calculated by applying a known amount of heat to the calorimeter and measuring the calorimeter s corresponding change in… …   Wikipedia