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Topic: Equilibrium thermo

	speleogenesis.net :: Publications
		The value of the vapour equilibrium pressure depends essentially on the temperature of the system (water and vapour, which must be the same because thermo-dynamical equilibrium is assumed) as described by the Clapeyron equation.
		The humidity in cave atmospheres is generally at the equilibrium level, due to the close contact among water surfaces and air in these quasi-closed systems, which allows them to reach equilibrium.
		The equation connecting the es (equilibrium pressure) on a flat surface and the esr on a droplet is given by the Kelvin equation.
	www.speleogenesis.info /archive/publication.php?PubID=3271&Type=publication (3704 words)

	equilibrium - Hutchinson encyclopedia article about equilibrium
		In a dynamic equilibrium, in contrast, a steady state is maintained by constant, though opposing, changes.
		For example, in a sealed bottle half-full of water, the constancy of the water level is a result of molecules evaporating from the surface and condensing on to it at the same rate.
		Each molecule of the gutter bore away a molecule of heat radiating from Gringoire's loins, and the equilibrium between the temperature of his body and the temperature of the brook, began to be established in rough fashion.
	encyclopedia.farlex.com /equilibrium (295 words)

	2.4.7 Thermodynamics of semiconductors
		This definition implies that in thermal equilibrium no energy (heat, work or particle energy) is being exchanged between the parts within the system and between the system and the environment.
		Thermal equilibrium is obtained by isolating a system from its environment, removing any internal sources of energy, and waiting for a long enough time until the system does not change any more.
		The concept of thermal equilibrium is of interest since a variety of thermodynamic results assume that the system under consideration is in thermal equilibrium.
	physics.ship.edu /~mrc/pfs/308/semicon_book/thermo.htm (839 words)

	Gas Temperature
		The second principle is the definition of thermodynamic equilibrium between two objects.
		Two objects are in thermodynamic equilibrium when they have the same temperature.
		When the thermometer is brought into contact with another object, it quickly establishes a thermodynamic equilibrium.
	www.grc.nasa.gov /WWW/K-12/airplane/temptr.html (1076 words)

	No Title
		Thermal equilibrium is the concept which is peculiar to thermodynamics and statistical mechanics.
		The first law of thermodynamics says that the increase in internal energy of a thermodynamic system, whether or not it is in equilibrium, is the sum of the work done on a body and the heat that flows into the body.
		When two different phases of the same material are in equilibrium with one another their Gibbs free energy per unit mass must be the same, so the chemical potentials must be the same.
	www.phys.washington.edu /users/thouless/524A/thermo/thermo.html (2873 words)

	Thermal equilibrium (Site not responding. Last check: 2007-10-19)
		Thermal equilibrium is the subject of the Zeroth Law of Thermodynamics.
		The "zeroth law" states that if two systems are at the same time in thermal equilibrium with a third system, they are in thermal equilibrium with each other.
		If A and C are in thermal equilibrium with B, then A is in thermal equilibrium with B. Practically this means that all three are at the same temperature, and it forms the basis for comparison of temperatures.
	hyperphysics.phy-astr.gsu.edu /hbase/thermo/thereq.html (148 words)

	- Thermo Electron Corporation - Thermo Enhances the Sample Preparation Capabilities of the TriPlus Autosampler with SPME
		A unique feature of Thermo’s TriPlus is the ability to gently shake the vials, thereby eliminating any mechanical stress of the fiber and greatly extending the lifetime of the fiber itself.
		Thermo's Life and Laboratory Sciences segment provides analytical instruments, scientific equipment, services and software solutions for life science, drug discovery, clinical, environmental and industrial laboratories.
		Thermo's Measurement and Control segment is dedicated to providing analytical instruments used in a variety of manufacturing processes and in-the-field applications, including those associated with safety and homeland security.
	www.thermo.com /com/cda/newsevents/news_detail/1,,11935,00.html (448 words)

	Introduction to Environmental Science - 551 Introduction - Thermodynamics
		The state of a macroscopic system in equilibrium can be described in terms of such measurable properties as temperature, pressure, and volume, which are known as thermodynamic variables.
		When a macroscopic system moves from one state of equilibrium to another, a thermodynamic process is said to take place.
		A consequence of this fact is the zeroth law of thermodynamics, which states that when each of two systems is in equilibrium with a third, the first two systems must be in equilibrium with each other.
	www.science.duq.edu /esm/Course_Material/ESM551/Notes/energy/GIFS/thermo.html (1769 words)

	Pyrosim Manual, Chapter 3
		Although this will not affect the predicted equilibrium compositions (because the equilibrium distribution is dependent on the moles of each element present, which remain the same), the energy requirements for the process will increase.
		If, for example, boron (B) was also present in the equilibrium selection, and was present at equilibrium, then carbon and iron would be the second and third components present in the metal phase.
		If however, boron was selected in the equilibrium specification, but was not present at equilibrium, then carbon and iron would remain the first and second compounds in the metal phase and ACT002.EXT would not need to be updated.
	www.mintek.co.za /Pyromet/Pyrosim/ManCh3.htm (2697 words)

	About Temperature
		When a calibrated thermometer is put in thermal contact with a system and reaches thermal equilibrium, we then have a quantitative measure of the temperature of the system.
		For example, a mercury-in-glass clinical thermometer is put under the tongue of a patient and allowed to reach thermal equilibrium in the patient's mouth - we then see by how much the silvery mercury has expanded in the stem and read the scale of the thermometer to find the patient's temperature.
		If an object is placed in a container whose walls are at a uniform temperature, we expect the object to come into thermal equilibrium with the walls of the enclosure and the object should emit radiant energy just like the walls of the container.
	eo.ucar.edu /skymath/tmp2.html (4839 words)

	CHP - Thermodynamics with Redox Example
		When we reach equilibrium we write the reaction with arrows in both directions.
		We use the right arrow when we are talking about a reaction at non-equilibrium concentrations and the double arrows when a reaction has reached equilibrium.
		Reactants that are mixed in non-equilibrium concentrations have potential energy that drives the reaction towards equilibrium.
	www.chem.vt.edu /chem-ed/thermo/redox.html (415 words)

	Solar Vibration Propulsion (Site not responding. Last check: 2007-10-19)
		The first is the bubble growth from point A to the point of mechanical equilibrium B. In point B, the kinetic energy has a first maximum on the stroke of expansion.
		From inertia, the bubble passes equilibrium point B and has reached point C of maximum of potential energy due to the fact that pressure inside becomes less than outside pressure.
		The effect was observed as the influence of the radiation on the level of liquid in a capillary pipe.
	www.gpi.ru /~sukhodol/free/h2/u2.htm (3717 words)

	temperature
		after we place them in contact and wait a sufficiently long time for them to reach thermal equilibrium, their pressure will in general not be equal, nor will their volume, but their temperature will always be equal in thermal equilibrium.
		if B comes separately into thermal equilibrium with A and E and indicates the same temperature, then A and E are in thermal equilibrium and have the same temperature.
		A, E, and B are in thermal equilibrium if and only if their temperature are equal (the zeroth law of thermodynamics).
	www.physicsforums.com /showthread.php?p=944534 (809 words)

	eLibrary Manuscript Preview Page (Site not responding. Last check: 2007-10-19)
		Flow equations, in finite-difference form, are combined to obtain an implicit equation for the oil-phase pressure, an explicit equation for the over-all composition of each hydrocarbon component, an explicit water saturation equation, and explicit oil-gas saturation equations that satisfy thermo-dynamic equilibrium.
		Equations for oil pressure, water saturation, hydrocarbon compositions, and oil-gas saturations are sequentially solved in an iterative loop until convergence is achieved.
		Hydrocarbon-phase equilibrium calculations use equilibrium ratios as a function of pressure and convergence pressure.
	www.spe.org /elibrary/servlet/spepreview?id=00006890 (698 words)

	Brainstorms: Granville Sewell and the Second Law of Thermodynamics
		The concept of thermodynamic equilibrium is explained by the zeroth law of thermo...
		In addition to the close to thermodynamic equilibrium, there is a whole new field of non-equilibrium thermodynamics which has a whole range of new features.
		And also equilibrium is a relative state, depending on what system and what aspects of it we are looking at (if you include nuclear processes, entropy is maximised by fusion/fission to iron, and most systems are a long way from this equilibrium).
	www.iscid.org /boards/ubb-get_topic-f-6-t-000216-p-2.html (4870 words)

	Buy hats-Brooks - US Shopping Online (Site not responding. Last check: 2007-10-19)
		Equilibrium technologies are about thermo-regulation, featuring advanced moisture t...
		Equilibrium technologies are about thermo-regulation, featuring advanced moisture tran...
		Equilibrium technologies are about thermo-regulation, featuring advanced moisture transfer f...
	www.us-shopping-online.com /search3-hats-Brooks (343 words)

	Interests (Site not responding. Last check: 2007-10-19)
		Dynamic Equilibrium - this is a good explanation of equilibrium with examples.
		The Equilibrium Constant - This is similar to what is in your book...do the practice problems.
		Calc K from Equilibrium Concentrations - Again, similar to what is in your book but it includes a little more details.
	www.cbv.ns.ca /rv/chemistry/interest.htm (532 words)

	liquid phase epitaxy
		At conditions that are close to the equilibrium between dissolution and deposition the deposition of the semiconductor crystal on the substrate is slowly and uniform.
		The equilibrium conditions depend very much on the temperature and on the concentration of the dissolved semiconductor in the melt.
		Koyo Thermo Systems and Crystec will be pleased to engineer a cost effective system to satisfy your most demanding and exacting requirements.
	www.crystec.com /klllpee.htm (489 words)

	[No title]
		The NASA thermo data file format was documented in: Sanford Gordon and Bonnie J. McBride, "Computer Program for Calculation of Complex Chemical Equilibrium Compositions and Applications: I. Analysis", NASA Reference Publication 1311, October 1994.
		Besides a very different file layout, the most significant change between the older (1971) NASA thermo data and the 1996 data is the generalization to any number of temperature intervals.
		In the preceding excerpt from McBride and Gordon (1996), reference is made to eqs.
	www.tfd.chalmers.se /~valeri/Mars/nasa.html (809 words)

	AIAA - Thermophysics Webpage
		The deviation of the quasisteady distribution from an equilibrium Boltzmann distribution is derived to model the effect of population depletion in the vibrational manifold due to dissociation.
		Cairo University laboratories and research facilities have been developing a simulation capability for predicting the flow regimes and heat transfer in air-conditioned spaces.
		The approach involves the coupling of thermo-turbulence equilibrium Navier-Stokes calculations with multidimensional, in-depth material thermal response calculations.
	www.aiaa.org /tc/tp/publications/highlight2001.html (1232 words)

	Thermo: A Gas in a Box Simulation (Site not responding. Last check: 2007-10-19)
		THERMO is a statistical mechanics simulation that allows you to investigate a wide variety of equilibrium and non-equilibrium phenomena.
		You can display the motion of up to 1100 particles in a box moving under a variety of forces: hard sphere collisions with each other, external fields, and friction when they collide with the wall.
		THERMO lets students visualize the motion of particles in a gas.
	www.physics.umd.edu /ripe/cuple/thermo.html (1878 words)

	Research groups: THERMO-group
		Thermodynamic analysis relates to the equilibrium state of materials and materials systems to macroscopic variables such as pressure, temperature, composition and stress.
		Combined with experimental observations of phases and the measurement of their composition, it creates the framework to understand materials and processes and presents opportunities to improve materials properties and processes used in materials production.
		It is therefore essential to also study phenomena such as reactions, diffusion, segregation and solidification that bridge the gap between equilibrium and non-equilibrium states.
	www.mtm.kuleuven.ac.be /Research/THERMO/index.html (193 words)

	[No title]
		Use water as an example: At 373.15 K and 1 atm, steam is in equilibrium with liquid water.
		At 273.15 K and 1 atm, ice is in equilibrium with liquid water.
		If they equal to each other, the two phases are in equilibrium in a closed system and dG = 0, because dnl = - dns Thermodynamic criterion of phase equilibrium: At equilibrium, the chemical potential throughout a system is the same, regardless how many phases are present.
	www.uark.edu /depts/cheminfo/uarkchem/undergraduate/courseinformation/Chem3514/pchemnotes2.doc (1742 words)

	Ch438_Lec_3 (Site not responding. Last check: 2007-10-19)
		The tragedy of thermo, the other side of the coin, is that it tells nothing about the details - we have no idea about how the energy is used, what steps are involved in its loss from thermo.
		When the free energy is negative we say the reaction is spontaneous, which simply means the reactants are favored in the reaction equation as written.
		G°' is the energy due to the nature of the system or substance, and RT lnQ, is the energy arising from the distance the system is from equilibrium.
	www.humboldt.edu /~rap1/C438.S05/C438Notes/C438nLec03.htm (896 words)

	Quest Consultants Inc. Thermo Properties Page
		The calculations are based on predictions of vapor/liquid equilibrium.
		If the vapor/liquid equilibrium cannot exist for the mixture, temperature, and pressure that you select, then the answers may not be good.
		If components freeze or if components separate into more than one liquid phase or if polar chemicals are mixed with water, the answers are not likely to be good.
	www.questconsult.com /~jrm/thermot.html (344 words)

	Pyrosim Manual
		Pyrosim is most suited to study complex systems, while Thermo allows compounds and single reactions to be rapidly analysed.
		Thermodynamic data can now be edited in Thermo and exported to Pyrosim.
		The new empirical model is believed to be a powerful new feature which is afforded the same generality incorporated in the equilibrium model.
	www.mintek.co.za /Pyromet/Pyrosim/PyroMan.htm (395 words)

	1998 - 1999 Chemistry (Site not responding. Last check: 2007-10-19)
		The laboratory work in the first semester involves quantitative measurements illustrating the laws of chemical combination.
		In the second semester particular attention is given to equilibrium in solutions and to the qualitative reactions of the common cations and anions.
		Solutions, electrolytes, equilibrium, thermo-dynamics, nuclear chemistry, electrochemistry, kinetics, organic chemistry and biochemistry.
	vm.uconn.edu /~regsdh06/chem.htm (1408 words)

	equilibrium - OneLook Dictionary Search
		Equilibrium : Online Plain Text English Dictionary [home, info]
		Phrases that include equilibrium: punctuated equilibrium, equilibrium price, sense of equilibrium, thermodynamic equilibrium, donnan equilibrium, more...
		Words similar to equilibrium: balance, counterbalance, equilibria, equipoise, chemical equilibrium, labyrinthine sense, sense of balance, sense of equilibrium, vestibular sense, more...
	www.onelook.com /?w=equilibrium&ls=a (403 words)

	Thermo-Calc Software (Site not responding. Last check: 2007-10-19)
		The Thermo-Calc software is widely spread around the world and have numerous of users all over the world, and is probably the most frequently used thermodynamic simulation software world wide.
		The software not only performs standard equilibrium calculations and calculation of thermodynamic quantities based on thermodynamic databases, the Thermo-Calc Classic software is also equipped with some unique features in special modules for special types of calculations for the advanced user.
		For example, the assessment module for thermodynamic data is highly accepted as the most advanced and reliable tool in the development of thermodynamic databases.
	www.thermocalc.com (179 words)

	Course Content (Site not responding. Last check: 2007-10-19)
		Covers stoichiometry, atomic structure, geometry of molecules, kinetics, gases, liquids and solids, equilibrium, thermo, bonding, solutions, acids/bases, electrochem, and organic.
		Short overview of solutions, acid/base, equilbria, solubility, thermo, coordination compounds, nuclear.
		Problems on atoms, stoichiometry, states of matter, equilibrium, electronic structure, thermochemistry, kinetics, bonding, acid/base, precipitation, and electrochemistry.
	wulfenite.fandm.edu /resources/course.html (829 words)

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