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Topic: Dynamic equilibrium

Related Topics

Static equilibrium

Thermal regulation

Body temperature

Statics

Coriolis effect

Homeostasis

Positive feedback

Negative feedback

Autonomic nervous system

Statically determinate

Circulatory system

Somatic nervous system

Lung

Human lung

Pituitary gland

	Exploratory Activity: Dynamic Equilibrium
		The concept of equilibrium is a very important one to scientists in all fields.
		Static equilibrium refers to a condition in which the parts of a system have stopped moving, and is rare in nature.
		Dynamic equilibrium refers to a condition in which the parts of a system are in continuous motion, but they move in opposing directions at equal rates so that the system as a whole does not change.
	biology.arizona.edu /sciconn/lessons/mccandless/equilib.html (462 words)

	Dynamic equilibrium - Biocrawler (Site not responding. Last check: 2007-11-01)
		What is happening is that molecules of water in the air will occasionally hit the surface of the water and condense back into the liquid bulk water, and this occurs at the same rate at which water evaporates from the bucket.
		Dynamic equilibrium works on a property of reversible change, that is to say, that liquid can evaporate into vapor, but then the vapor can recondense into liquid.
		The concept of dynamic equilibrium is not limited to simple changes of state such as that described above.
	www.biocrawler.com /encyclopedia/Dynamic_equilibrium (286 words)

	USA Gymnastics Online: Technique: EQUILIBRIUM: BIOMECHANICAL IMPLICATIONS
		Static equilibrium is changed from frame A to B as the gymnast concentrically contracts the hip abductors of the right leg, resulting in an internal action force that translates to an external ground reaction force.
		Dynamic motion follows and is imbedded in a loss of equilibrium as the gymnast positively accelerates around the anteroposterior axis.
		Static equilibrium does not exist when the CG and its corresponding line of gravity are outside the base of support; however, this is not the case with dynamic equilibrium.
	www.usa-gymnastics.org /publications/technique/1997/2/equilibrium.html (1689 words)

	Dynamic equilibrium (Site not responding. Last check: 2007-11-01)
		This is an example of dynamic equilibrium; the rate of evaporation equals the rate of condensation.
		This term can also be used to refer to a steady state (i.e., a state which isn't a true equilibrium, but does not change with time) This can only happen if the system is in contact with an environment which is not in equilibrium.
		The rates (amount of molecules evaporating/condensing) of the Equilibrium stay the same at a constant temperature and pressure, but as soon as they change, the rates change as well.
	www.serebella.com /encyclopedia/article-Dynamic_equilibrium.html (571 words)

	Dynamic Equilibrium
		There is a balance between those two opposite reactions, and we call that kind of balance a dynamic equilibrium -- equilibrium because there is a balance, dynamic because there are changes taking place.
		A saturated solution is considered to be in dynamic equilibrium because there is molecular change that is occurring in opposite directions at the same rate, such that there is no net observable change.
		Thus, a saturated solution in contact with undissolved solute is an example of a dynamic equilibrium.
	dl.clackamas.cc.or.us /ch105-03/dynamic.htm (497 words)

	Honolulu Star-Bulletin Business - Facts of the Matter
		Dynamic equilibrium is a state where change is occurring, but in such a way as to maintain the balance.
		Cooling or warming the jar disrupts the equilibrium, causing an excess in one direction or the other until a new dynamic equilibrium is established between the liquid and the humidity of the air.
		Although the study of equilibrium dynamics has been fruitful in understanding many aspects of the physical and social world, the application of the new tools of chaos and nonequilibrium dynamics holds promise for increasing our understanding of many processes such as weather that were beyond the reach of the classical equilibrium studies.
	starbulletin.com /2004/08/08/business/brill.html (1820 words)

	Equilibrium (Site not responding. Last check: 2007-11-01)
		The concept of equilibrium is an extremely important one.
		It is not dead (static equilibrium), but it is in a state of dynamic equilibrium or dynamic steady state.
		Dynamic equilibrium says that both the forward movements and backward movements are the same.
	www.science-projects.com /Equilibrium.htm (401 words)

	Dynamic equilibrium: Definition and Links by Encyclopedian.com
		...Dynamic equilibrium Dynamic equilibrium Dynamic equilibrium is a state when the...Some providers of dynamic DNS are: Dynip.com, located in Sarnia, Ontario Hammernode DynDNS :...
		...: a system is a dynamic and complex whole, interacting as a structured functional unit in...
		Dynamic equilibrium is a state when the forward and reverse chemical reactions are happening simultaneously and constantly.
	www.encyclopedian.com /dy/Dynamic-equilibrium.html (146 words)

	Dynamic equilibrium (Site not responding. Last check: 2007-11-01)
		This is an exampleof dynamic equilibrium; the rate of evaporation equals the rate of condensation.
		A Dynamic Equilibrium is a dynamic condition when a liquid and its vapor have reached a point at which the liquidevaporates (sufficient enough kinetic energy to break bonds with liquid and turn into vapor) at the same rate that the vaporcondenses (not enough kinetic energy in molecule, so it is re-attracted into the liquid).
		Dynamic Equilibriumworks on a property of reversible change, that is to say, that liquid can evaporate into vapor, but then the vapor can recondenseinto liquid.
	www.therfcc.org /dynamic-equilibrium-139926.html (394 words)

	Intute sciences - Chemical Sciences: Chemical Equilibrium is a Dynamic State (Site not responding. Last check: 2007-11-01)
		A dynamic equilibrium is a state in which there appears to be nothing happening, a state in which there is no net change, but is also a state in which chemical reactions are taking place, often at rapid rates.
		The alternative expression of a dynamic chemical equilibrium is to say that the condition of equilibrium is one in which the rates of movement of the system are equal in both of the opposite directions.
		Since a dynamic chemical equilibrium is the state in which both the driving forces, and the rates, of opposed reactions are equal, the concept has been approached both from the point of view of driving forces and from the point of view of reaction rates.
	www.intute.ac.uk /sciences/reference/plambeck/chem1/p01091.htm (494 words)

	IB Chemistry syllabus and notes: Dynamic equilibrium
		Dynamic equilibrium is when there is change within a system in opposite directions and, as the change occurs at the same rate, then the concentrations of the two components remains constant.
		A liquid in equilibrium with its own vapour is a physical example of a dynamic equilibrium as there is no change in chemical identity.
		This is also called a Phase Equilibrium as the particles are changing between phases.
	www.ibchem.com /IB/ibnotes/full/equ_htm/8.1.htm (606 words)

	Why is the universe in dynamic balance?
		The equilibrium is dynamic because the system is in synchronized motion, therefore the balance is changing, yet consistent.
		The dynamic equilibrium of the entire portion is seen to synchronize in a concerted uniform expansion.
		They also regulate in sizes and shapes, so that dynamic balance cannot come to stand still or to breaking points, because in the end all mass and energy must be conserved within the universe, which is also fundamental to the principle and the exact working of science....
	www.regenerating-universe.org /~regenera/11)_Why_is_universe_in_Dynamic_Balance.htm (2430 words)

	Chapter 12: Principles of Chemical Equilibrium
		In this chapter the dynamic equilibrium established in chemical reactions is explored, and its similarity to phase equilibrium is emphasized.
		Dynamic equilibrium is a balance of opposing processes occurring at equal rates.
		For liquid-vapor phase equilibrium, we saw that the equilibrium state at a fixed T is characterized by a constant pressure (concentration) of vapor.
	www.wpi.edu /Academics/Depts/Chemistry/Courses/General/concep12.html (7752 words)

	Chapter 10: Phase Equilibrium
		In a closed container, a dynamic equilibrium involving two phases of a pure substance can be established at certain pressures and temperatures; the rate of passage from phase 1 to phase 2 equals the rate of passage from phase 2 to phase 1.
		Equilibrium is characterized by a particular ratio of the concentration of dissolved B to the pressure of B above the solution.
		The equilibrium in 10-8-20 is certainly a phase equilibrium, because it involves two phases: a solid phase, represented by the salt, and a liquid phase, the solution.
	www.wpi.edu /Academics/Depts/Chemistry/Courses/General/concep10.html (17639 words)

	Liquid State: Dynamic Equilibrium
		An essential component needed to fully understand many chemical systems is the concept known as a dynamic equilibrium.
		By referring to a system as an equilibrium, it is implied that the process goes in two directions at the same time, forwards and backwards.
		When a stress is introduced into a system at equilibrium, the equilibrium will rearrange itself in order to relieve the stress.
	www.bcpl.net /~kdrews/liquids/liquids3.html (403 words)

	Introduction (Site not responding. Last check: 2007-11-01)
		A stick balanced on a fulcrum is said to be in a state of static equilibrium where the clockwise torque (F x D) is equal to the counter-clockwise torque.
		Equilibrium does not mean that the quantities of the components on the left side equal the quantity of the components on the right side of the process.
		In further areas we will focus on how to determine these equilibrium constants and how they can be applied in learning about the fixed equilibrium concentrations in an equilibrium mixture.
	members.aol.com /profchm/eq_intro.html (934 words)

	A Primer in Dynamic General Equilibrium Analysis
		These results provide a practical argument for dynamic modeling in a complementarity format: terminal approximation methods are more precise, so a model does not need to include as many periods to approximate the infinite horizon saddle path.
		Dynamic adjustment with respect to capital is more smooth when installation costs are included in the model.
		Dynamic adjustment is smoother with respect to investment compared to the Ramsey model when quadratic installation costs are included in the model.
	www.mpsge.org /primer/paper.htm (5957 words)

	Dynamic Equilibrium (Site not responding. Last check: 2007-11-01)
		If some of the components of an equilibrium system are gases then we have noted that Q can be expressed in terms of the partial pressures.
		Therefore the position of an equilibrium is not affected by the presence of a catalyst.
		Use this K and the initial conditions to calculate the equilibrium concentrations of A and B. Use this and the rate laws to calculate the rates for the forward and reverse reactions at equilibrium.
	home.att.net /~v.d.singleton/genchem/equilib.htm (3103 words)

	an introduction to chemical equilibria
		The reaction has reached equilibrium in the sense that there is no further change in the numbers of blue and orange squares.
		It means that you have a reversible reaction in a state of dynamic equilibrium.
		At equilibrium, the quantities of everything present in the mixture remain constant, although the reactions are still continuing.
	www.chemguide.co.uk /physical/equilibria/introduction.html (1405 words)

	Dynamic Equilibrium (Site not responding. Last check: 2007-11-01)
		The exact moment of equilibrium happens when the rate of the forward reaction equals the rate of the reverse reaction.
		It's important to emphasize that once equilibrium is achieved, the two reactions (forward and reverse) continue to run.
		It's just at equilibrium, since the rates are equal, there is no more visible (or measurable) change to the system.
	dbhs.wvusd.k12.ca.us /webdocs/Equilibrium/Dynamic-Equilibrium.html (635 words)

	Dynamic Labile Equilibrium (CoReState)
		The CoReState is a state of Dynamic Labile Equilibrium (DLE).
		It is a state of balanced opposites: flexibility and strength, focus and openness to the moment.
		The state of dynamic labile equilibrium is a bridge to the informational level.
	www.energy-medicine.info /core/core-state.html (454 words)

	JCE 1999 (76) 559 [Apr] Introducing Dynamic Equilibrium as an Explanatory Model
		Finally, the dynamic chemical equilibrium concept is offered to students as an explanatory model to account for these results.
		The dynamic equilibrium concept is then readily accepted by most of them as they recognize the possibility to explain the reversibility and incomplete conversion they observed.
		The students' most effective type of reasoning appeared to be based on the idea that, in a state of equilibrium, all conditions for both the forward and the backward reaction to take place are satisfied.
	jchemed.chem.wisc.edu /Journal/Issues/1999/Apr/abs559.html (322 words)

	Le Chatelier's Principle
		If a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium moves to counteract the change.
		That means that the position of equilibrium will move so that the concentration of A decreases again - by reacting it with B and turning it into C + D. The position of equilibrium moves to the right.
		For a dynamic equilibrium to be set up, the rates of the forward reaction and the back reaction have to become equal.
	www.chemguide.co.uk /physical/equilibria/lechatelier.html (1511 words)

	Jesus Fernandez-Villaverde's Homepage
		My research interest are in the formulation of dynamic equilibrium models, their efficient computation, and their estimation.
		An approximation to the equilibrium of a complete dynamic stochastic economic model can be expressed in terms of matrices (A,B,C,D) that define a state space system.
		This paper studies the properties of the Bayesian approach to estimation and comparison of dynamic equilibrium economies.
	www.econ.upenn.edu /~jesusfv/research.html (2440 words)

	Rapid-equilibrium vs. dynamic methods
		Under the rapid equilibrium approximation, it is assumed that the non-covalent binding of substrates to the enzyme and the dissociation of newly formed products from the intermediate complexes is infinitely faster than any chemical steps.
		If a species with non-zero molar response coefficient is not formed directly in a ``slow'' step (not a ``rapid equilibrium'' step), it is still possible to compute the initial reaction velocity using the rapid equilibrium approximation.
		An alternate method for computing initial reaction velocities in DynaFit is based on the simulation of pre-steady state dynamics of the (bio)chemical system.
	www.biokin.com /dynafit/scripting/html/node49.html (752 words)

	Statics-Equilibrium-Static equilibrium-Dynamic equilibrium-Conditions of equilibrium
		Static is the branch of mechanics which deals with the study of bodies at rest under a number of forces, the equilibrium, conditions of equilibrium, types of equilibrium, torque etc.
		A body is said to be in equilibrium if it is at rest or moving with uniform velocity.
		In other words we can say that to maintain equilibrium the sum of all the forces acting along X-axis is zero and the sum of all the forces acting along Y-axis is zero.
	www.citycollegiate.com /staticsXIa.htm (325 words)

	Equilibrium
		The definition for a dynamic equilibrium is when the amount of products and reactants are constant.
		To determine the amount of each compound that will be present at equilibrium you must know the equilibrium constant.
		Le Chatelier's principle states that when a system in chemical equilibrium is disturbed by a change of temperature, pressure, or a concentration, the system shifts in equilibrium composition in a way that tends to counteract this change of variable.
	library.advanced.org /10429/high/equil/equbody.htm (452 words)

	IoHT :: 50+ Variations of Equilibrium (Site not responding. Last check: 2007-11-01)
		– a process is called quasi-static when it follows a succession of equilibrium states; the surroundings may be irreversibly altered during the process so that after a return path, the universe ends up in a final state which differs from its initial state [PP].
		– outside of the extrema, there is no possible equilibrium and the states are merely unstable: the system evolves spontaneously towards an equilibrium, stable or Metastable, although the evolution may be very slow.
		a state of balance between opposing forces or actions that is either static, as in a body acted on by forces whose resultant is zero, or dynamic, as in a reversible chemical reaction when the rates of reaction in both directions are equilibrium
	www.humanthermodynamics.com /equilibrium.html (1822 words)

	Amazon.com: A dynamic equilibrium analysis of the cigarette oligopoly: (Dissertation): Books: Wei Tan (Site not responding. Last check: 2007-11-01)
		The second essay develops an empirical dynamic oligopoly model of the cigarette industry to study the response of firms to various anti-smoking policies and to estimate the implications for policy efficacy.
		Modeling firms as coordinating in price and competing in advertising, this dynamic model captures two crucial features of the cigarette industry: (1) dynamic demand due to addiction; and (2) differences between young smokers and adult smokers in their responses to price and advertising.
		Furthermore, the long run effects of anti-smoking policies on reducing smoking rates tend to be smaller than the short run effects, as firms have stronger incentives to exploit current smokers in the short run.
	www.amazon.com /dynamic-equilibrium-analysis-cigarette-oligopoly/dp/B000GQM1WS (565 words)

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