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Topic: Triple point

Related Topics

Gibbs phase rule

Boiling point

Water (molecule)

Ice

Phase (matter)

Sublimation (physics)

Water vapor

Flash point

Melting point

Critical point

State of matter

Pressure

Ice XII

Water

Temperature

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	TRIPLE POINT
		Triple point is the intersection on a phase diagram where three phases coexist in equilibrium.
		The most important application of triple point is water, where the three-phase equilibrium point consists of ice, liquid, and vapor.
		Before discussing triple point further, a basic understanding of the lines from Figure 1, the phase diagram of water, are first considered.
	www.sv.vt.edu /classes/MSE2094_NoteBook/96ClassProj/examples/triplpt.html (0 words)

	* Triple Point - (Meteorology): Definition
		Triple Point - the intersection point between two boundaries (dry line, outflow boundary, cold front, etc.) OR a point on the gust front of a supercell, where the warm moist inflow,...
		Triple point also may refer to a point on the gust front of a supercell, where the warm moist inflow, the rain-cooled outflow from the forward flank downdraft, and the rear flank downdraft all intersect;...
		Nowadays, the triple point of water is used instead (the triple point occurs at 273.16 kelvins, 0.01 Â°C).
	en.mimi.hu /meteorology/triple_point.html (380 words)

	News \| Gainesville.com \| The Gainesville Sun \| Gainesville, Fla. (Site not responding. Last check: )
		In physics, the triple point of a substance is the temperature and pressure at which three phases (gas, liquid, and solid) of that substance may coexist in thermodynamic equilibrium.
		The triple point of water is used to define the kelvin, the SI base unit of thermodynamic temperature.
		Triple point cells are so effective at achieving highly precise, reproducible temperatures, an international calibration standard for thermometers called ITS–90 relies upon triple point cells of hydrogen, neon, oxygen, argon, mercury, and water for delineating six of its defined temperature points.
	www.gainesville.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=Triple_point (479 words)

	Triple point - Glasgledius (Site not responding. Last check: )
		The triple point is the temperature and pressure at which three phases (gas, liquid, and solid) of a particular substance may coexist in thermodynamic equilibrium.
		For water the triple point temperature is exactly 273.16 K (0.01 C) and the triple point pressure is 611.73 Pa (ca.
		For mercury the triple point temperature is -38.8344 °C. The triple point of water is used to define the Kelvin and the Celsius temperature scale; the number given for the temperature of the triple point of water is an exact definition rather than a measured quantity.
	www.glasglow.com /e2/tr/Triple_point.html (114 words)

	Triple Point - Commodity XL for Oil
		The Triple Point system improves measurement of risk and enables timely actions on pricing, volume, operations.
		Triple Point delivers on next-generation architecture – read what that means for you.
		How to get started - To learn more about Commodity XL for Oil and what Triple Point can do for your supply, marketing, hedging and trading activities, email us at info@tpt.com or call +1.203.291.7979.
	www.tpt.com /oil.asp (0 words)

	NewsGator Case Study: Triple Point Technology
		Triple Point Technology is a leading provider of commodity trading solutions for energy, power, and financial services firms around the world.
		Triple Point has been recognized by Inc. magazine as one of the fastest growing companies in America.
		Triple Point started with a simple goal: "The idea is to free some of our content, expose it via easily searchable XML and HTML via HTTP, and reduce the amount of information "hunt and peck" that currently goes on, thus increasing productivity and improving the quality of our work," says Allie.
	fr.newsgator.com /casestudies/triplepoint.aspx (1055 words)

	Phase Change (Site not responding. Last check: )
		The location of the triple point of a pure substance occurs at a single definite pressure and temperature characteristic of that substance.
		For water, the triple point lies at 273.16 K and 611 Pa or 4.58 Torr (remembering that 760 Torr is atmospheric pressure), and the three phases of water coexist in equilibrium at no other combination of pressure and temperature.
		In (a), for water, note the triple point A (0.0098°C, 4.58 torr), the normal melting (or freezing) point B (0°C, 1 atm), the normal boiling point C (100°C, 1 atm), and the critical point D (374.4°C, 217.7 atm).
	www.tenafly.k12.nj.us /~shilfstein/links8.htm (911 words)

	Loscil: Triple Point: Pitchfork Record Review (Site not responding. Last check: )
		Triple Point, Loscil's debut record was titled for the point when the vapor, liquid, and solid phases of a material are all in equilibrium.
		Triple Point begins where the periodic table does: the opening track is titled "Hydrogen." The song starts with a muted beat under a looped two-note synth melody, and then neatly adds elements to this base one at a time.
		At this point in the record, it becomes clear that Triple Point is less a musical interpretation of thermodynamics-- or a response to the implications of thermodynamics that some might find sad or frightening-- and more a recording of what these processes might sound like if they were closely miked.
	www.pitchforkmedia.com /article/record_review/19477/Loscil_Triple_Point (1006 words)

	Science in Christian Perspective
		The triple point is defined as the point where the solid, liquid, and gaseous forms of a substance coexist in equilibrium.
		The triple point is incompatible with tritheism because, at the triple point, there are not three phases in the sense of taking steam, ice, and water from separate locations and combining them mechanically.
		Further, the phases of the triple point are locked together in a state of dynamic equilibrium which prohibits individual manifestation of the states matter except by destruction of the triple point.
	www.asa3.org /ASA/PSCF/1987/PSCF3-87Bozack.html (2009 words)

	Delphi Case Study: Triple Point Technology, Inc.
		Triple Point Technology, Inc., which had been doing UNIX-platform software development work for the commodities trading industry, made a strategic decision to build a totally new Windows-based trading system for crude oil, refined product, fuel oil, and petrochemical trading businesses.
		Triple Point identified electricity as an up-and-coming commodities trading vehicle and set out to build an OLAP system for electricity traders based on Tempest 2000.
		Triple Point's Delphi-powered systems are able to leverage people power to process a significantly higher volume of transactions.
	info.borland.com /about/cases/studies/triple.html (1387 words)

	Thermometer and Temperature Calibration Using a Triple Point of Water
		A Triple Point of Water Cell is used to create a thermal equilibrium between the three phases of pure water: liquid, solid and gas.
		Triple Point of Water Cells are not the only means of achieving a near 0°C reference temperature.
		Periodically, the water triple point is used as a certification check on the thermometers.
	www.hartscientific.com /publications/why-tpw.htm (610 words)

	NWS Norman, Oklahoma - Weather Glossary for Storm Spotters
		Soundings are used extensively in severe weather forecasting, e.g., to determine instability, locate temperature inversions, measure the strength of the cap, obtain the convective temperature, etc.
		Triple Point - The intersection point between two boundaries (dry line, outflow boundary, cold front, etc.), often a focus for thunderstorm development.
		Triple point also may refer to a point on the gust front of a supercell, where the warm moist inflow, the rain-cooled outflow from the forward flank downdraft, and the rear flank downdraft all intersect; this point is a favored location for tornado development (or redevelopment).
	www.srh.noaa.gov /oun/severewx/glossary4.php (4121 words)

	Triple Point and Sublimation (Site not responding. Last check: )
		Possibly there was a decimal point in the wrong place and 450 torr should have been 4.5 torr.
		Thus, when we say the triple point of water is at 0.0098C and 4.58torr, this is the condition at which the solid, liquid and vapor phase of water all exist -- at equilibrium.
		At the triple point however, there is no net change in the amount of ice, liquid water, and water vapor (even though there are individual molecules that are changing phases) - and so the amount of each substance is constant.
	www.newton.dep.anl.gov /askasci/chem03/chem03514.htm (469 words)

	Triple Point Software to Ease Oil-Price Guesswork - Technology - RedOrbit (Site not responding. Last check: )
		Sep. 22--Westport-based Triple Point Technology Inc. is co-developing software that will track the ever-changing price of a commodity such as oil, as well as the physical shipment of the commodity.
		Triple Point said Commodity SL will be available globally in the third quarter of next year.
		Triple Point software products are used by more than 25 percent of Global 500 commodity trading companies and Global 500 energy companies.
	www.redorbit.com /news/technology/666822/triple_point_software_to_ease_oilprice_guesswork/index.html?source=r_technology (518 words)

	Scientific American: Tackling the Triple Point (Site not responding. Last check: )
		One method is based on a wonderfully repeatable property of water: the unique temperature, called the triple point, at which water can exist with its solid, liquid and gas phases all in equilibrium.
		To reach the triple point, first chill the cell overnight in a refrigerator.
		Because the change in resistance caused by a given temperature difference is well known for platinum, the triple point is all you'll need to calibrate the instrument.
	www.sciam.com /print_version.cfm?articleID=0002E065-1526-1C6B-84A9809EC588EF21 (1200 words)

	Triple Point Induced Dewetting (Site not responding. Last check: )
		At point A, on the solid-vapor coexistence line, far from the triple point, the solid completely wets the substrate forming thick films on the walls of the container.
		If, starting at the triple point, the temperature is raised slightly to point D, a solid film will still cover the substrate; however, because the solid phase is no longer stable in the bulk, the film is confined to a microscopic thickness and therefore the substrate is non-wet.
		Upon raising the temperature further along the liquid-vapor coexistence line, a point will eventually be reached, somewhere between points D and B, at which the surface free energy of the thick, wetting liquid films will be equal to that of the non-wetting solid films.
	www.physics.uci.edu /~lowtemp/mix_wet/dewet.html (414 words)

	Sumitomo Corporation of America Chooses Triple Point Solution for Natural Gas Trading and Scheduling, Delivered Via ASP (Site not responding. Last check: )
		Triple Point Technology is the leader in trading, risk management, scheduling and logistics solutions for commodities, including power, oil, gas, coal, metals, agricultural products, and freight.
		Triple Point Commodity XL profitably integrates physical and financial markets from the front-to-back office for all commodities on a real-time next-generation platform.
		Triple Point's award-winning solutions are used by more than 25 percent of both Global 500 commodity trading companies and Global 500 energy companies.
	www.prweb.com /releases/200640/5/prweb383530.htm (686 words)

	Triple point - Art History Online Reference and Guide (Site not responding. Last check: )
		For example, the triple point temperature of mercury is -38.8344 °C at a pressure of 0.2 mPa.
		The triple point of water is used to define the kelvin, the unit of thermodynamic temperature in the International System of Units.
		The triple point is the lowest temperature, for any value of the pressure, at which the liquid state is still passed.
	www.arthistoryclub.com /art_history/Triple_point (337 words)

	Phase Diagram (Site not responding. Last check: )
		Once boiling begins the temperaturer remains fixed at the boiling point until all of the liquid is converted to gas.
		Thus, at the boiling point liquid and gas coexist in equilibrium.
		The triple point is the temperature and pressure at which all three phases can exist in equilibrium.
	www.chemistrycoach.com /Phase_diagram.htm (283 words)

	Triple Point (Site not responding. Last check: )
		Richard E. Barrans Jr., Ph.D. Assistant Director PG Research Foundation, Darien, Illinois ========================================================= The triple point is defined as the temperature at which the vapor, the liquid, and the solid phases of a substance coincide.
		That is the triple point of ice/water[saturated with air], and vapor is different than the triple point of ice/water[air excluded], and vapor.
		Having said that, the triple point is usually reserved for reference to the pure phases of a substance.
	www.newton.dep.anl.gov /askasci/chem00/chem00111.htm (201 words)

	Triple Point of Water Cells
		The triple point of water (TPW) is not only the most accurate and fundamental temperature standard available, it’s also one of the least expensive and simplest to use.
		Triple point of water cells fill four critical purposes.
		And lastly, the triple point of water is where the practical temperature scale (ITS-90) and the thermodynamic temperature scale meet, since the triple point of water is assigned the value 273.16 K (0.01 °C) by the ITS-90 and the Kelvin is defined as 1/273.16 of the thermodynamic temperature of the triple point of water.
	www.hartscientific.com /products/tpw.htm (1128 words)

	Triple Point to set up shop in Pune
		PUNE: Triple Point Technology, Inc., a US-based company that provides enterprise-wide energy trading and risk management solutions, plans to open its office in Pune in December this year.
		Triple Point plans to begin with 20 engineers and increase the number to 80 by the end of the year 2003.
		Triple Point plans to invest $ 5 million over a period of the next three years in India.
	www.ciol.com /content/news/repts/102112816.asp (516 words)

	Chemistry: First Year - Triple Point of CO2
		Observing and Measuring the Triple Point of CO (adapted from Chemistry in Microscale by Ehrenkrantz and Mauch, Kendall/Hunt, 1993)
		To be able to observe liquid CO, the sample’s pressure and temperature must be at or exceed the triple point temperature and pressure.
		The actual triple point pressure of CO is 5.1 atm.
	www.smes.org /classes/chemistry/firstyear/LabTriplePointCO2.htm (831 words)

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