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Topic: Heat of fusion

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Specific heat capacity

Kilojoule per mole

Heat capacity

Titanium boride

Heat of vaporization

Water (molecule)

Entropy of fusion

Vapor pressure

Boiling point

Triple point

State of matter

Melting point

Standard molar entropy

Thermal conductivity

Molar volume

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	Polypipe - Heat Fusion and Joining Intro
		Butt Fusion – This technique consists of heating the squared ends of two pipes, a pipe and fitting, or two fittings by holding them against a heated plate, removing the plate when the proper melt is obtained, promptly bringing the ends together and allowing the joint to cool while maintaining the appropriate applied force.
		Saddle Fusion – This technique involves melting the concave surface of the base of a saddle fitting, while simultaneously melting a matching pattern on the surface of the pipe, bringing the two melted surfaces together and allowing the joint to cool while maintaining the appropriate applied force.
		Socket Fusion – This technique involves simultaneously heating the outside surface of a pipe end and the inside of a fitting socket, which is sized to be smaller than the smallest outside diameter of the pipe.
	www.polypipeinc.com /heatfusion.asp (1943 words)

	heat. The Columbia Encyclopedia, Sixth Edition. 2001-05
		Heat is commonly expressed in either of two units: the calorie, an older metric unit, and the British thermal unit (Btu), an English unit commonly used in the United States.
		The amount of heat needed to raise a unit of mass of the substance one degree of temperature is called the specific heat of the substance.
		The amount of heat needed to convert one unit of mass of a substance from a solid to liquid is called the heat of fusion, or latent heat of fusion, of the substance.
	www.bartleby.com /65/he/heat.html (652 words)

	Heat of fusion
		Heat of fusion is the heat absorbed by a unit mass of a solid chemical element at its melting point in order to convert the solid into a liquid at the same temperature.
		The heat of fusion is equal to the heat of solidification.
		The energy that goes into melting a solid is used to dissociate the intermolecular bonds[?] holding its molecules in place rather than to increasing the average thermal velocity of the molecules.
	www.ebroadcast.com.au /lookup/encyclopedia/he/Heat_of_fusion.html (75 words)

	Heat of fusion - Biocrawler (Site not responding. Last check: )
		Heat of fusion is the thermal energy which must be withdrawn to freeze a certain mass or quantity of liquid or added to melt a certain mass or quantity of solid.
		It is also called the latent heat of fusion or the enthalpy of fusion, and the temperature at which it occurs is called the melting point.
		The energy of the heat of fusion must be withdrawn (the liquid must turn to solid) before the temperature can continue to fall.
	www.biocrawler.com /encyclopedia/Latent_heat_of_fusion (467 words)

	Heat Of Fusion
		Heat absorbed by a unit mass of a solid at its melting point in order to convert the solid into a liquid at the same temperature; "the heat of fusion is equal to the heat of solidification".
		The heat lost or gained by a substance in passing from a solid state to a liquid state or a liquid to a solid state, at a constant temperature.
		λανθάνουσα θερμότητα τήξης (latent heat of fusion), θερμότητα τήξης.
	www.websters-online-dictionary.org /definition/english/he/heat+of+fusion.html (538 words)

	Heat shrinkable polyethylene laminate film - Patent 5635286
		Particularly, in recent years, a heat shrinkable polyethylene film using a linear low density copolymer of ethylene and an.alpha.-olefin (hereinafter referred to as "linear low density polyethylene") attracts attention in that the impact resistance and the heat seal strength are excellent, and its utilization in various fields is expected.
		C./minute and the heat of fusion was calculated from the area of endothermic peak by using the fusion curve.
		A heat shrinkable laminate film was obtained in the same manner as in Example 1 by using the same linear low density polyethylenes as Example 1 in the intermediate layer and the inner and outer layers except that the proportion of the thickness of the intermediate layer was made 50% of the entire thickness.
	www.freepatentsonline.com /5635286.html (2506 words)

	Heat - Latent Heat
		Latent heats of fusion vary widely, and values should always be accompanied by the temperatures at which they were measured (these are not necessarily the normal melting points).
		The latent heat of evaporation is the energy required to overcome the molecular forces of attraction between the particles of a liquid, and bring them to the vapour state, where such attractions are minimal.
		Latent heats of vaporization vary widely, and values should always be accompanied by the temperatures at which they were measured (these are not necessarily the normal boiling points).
	www.physchem.co.za /Heat/Latent.htm (785 words)

	Heat Problems
		A 15.0 kg ball of lead (specific heat 0.030 cal/g-°C) is cooled to 21.5 °C with a loss of 0.382 kcal of heat energy.
		the heat of vaporization of water is 9.7 kcal/mole.
		Calculate the heat of fusion of copper if it requires 1230 cal of heat to melt 38.4 g of copper at its melting point.
	homepage.mac.com /sklemmer/Honors/heatwkt.htm (916 words)

	Phase Changes
		The energy required to change a gram of a substance from the solid to the liquid state without changing its temperature is commonly called it's "heat of fusion".
		If one gram of the measured 33.3 gms were already melted, then the water would be cooled to 10.6 C and the experimental value for the heat of fusion would be 77.6 cal/gm.
		The energy required to change a gram of a liquid into the gaseous state at the boiling point is called the "heat of vaporization".
	hyperphysics.phy-astr.gsu.edu /hbase/thermo/phase2.html (439 words)

	Heat of Fusion \| World of Physics
		The amount of heat energy required to melt a given mass of a solid at its melting temperature at a given pressure is called the heat of fusion of the substance.
		The latent heat energy required to change the gram of ice into a gram of water at the melting point, without a change in temperature, is the heat of fusion for water.
		Furthermore, the amount of heat that must be removed from a sample for it to freeze into a solid is equivalent to the heat of fusion required for melting.
	www.bookrags.com /research/heat-of-fusion-wop (424 words)

	LATENT HEAT OF FUSION
		The amount of heat required to change 1 g of a substance at the temperature of its melting point from the solid to the liquid statewithout changing temperature.
		The quantity of heat required to change unit mass of a substance from the solid to the liquid state without change of temperature.
		calor latente de fusión (heat of fusion), calor de fusión (heat of fusion).
	www.websters-online-dictionary.org /definition/english/la/latent+heat+of+fusion.html (186 words)

	Search: Molar Heat of Fusion
		The molar heat of fusion is an important part of energy calculations since it...
		The molar heat of fusion for water is 6.02 kJ/mol.
		(H fus) heat of fusion; molar heat of fusion; molar enthalpy of fusion.
	www.haggle.com /webmkt.haggle/search/web/Molar%2BHeat%2Bof%2BFusion/-/-/1/-/-/-/1/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/302349/right (356 words)

	News \| Gainesville.com \| The Gainesville Sun \| Gainesville, Fla. (Site not responding. Last check: )
		), also known as the heat of fusion, 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 liquid or vice versa.
		It is also called the latent heat of fusion or the enthalpy change of fusion, and the temperature at which it occurs is called the melting point.
		The heat of fusion can also be used to predict solubility for solids in liquids.
	www.gainesville.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=heat_of_fusion (620 words)

	Peak Oil News & Message Boards Forums >> Post 57227 >> The heat of fusion is a great heat storage. (Site not responding. Last check: )
		The heat of fusion is a great heat storage.
		Fusion heat can't be sustained for very long with current processes.
		The heat of fusion is a simple wind energy storage also.
	www.peakoil.com /post57227.html (355 words)

	Heat of Fusion (Site not responding. Last check: )
		Heat of fusion is the amount of heat required to melt 1 mole of a solid at its melting point.
		2) Calculate the heat of fusion of sodium chloride, given the data that 1.16 g of NaCl absorbed 135 cal of heat in changing from a solid to a liquid.
		The same amount of heat is given off when a liquid solidifies, as is absorbed when the solid melts.
	www.unit5.org /christjs/Heat_Fusion.htm (105 words)

	Heat of Fusion \| World of Chemistry
		The heat of fusion is the heat that is absorbed to transform a substance from its solid state to its liquid state at constant, that is, to melt the solid substance.
		The enthalpy of fusion is the heat of fusion for melting of one mole of the substance under three specific conditions: (1) the pressure remains constant, (2) the only possible work that occurs is expansion against the atmosphere (so-called P()V work) and (3) the temperature remains constant during the process.
		The heat absorbed by the liquid is equal to the change in temperature multiplied by the molar heat capacity and the number of moles of solid melted.
	www.bookrags.com /research/heat-of-fusion-woc (539 words)

	223 Physics Lab: Specific and Latent Heat
		The purpose of this lab experiment is to measure the specific heat capacity of unknown metal samples and also to determine the latent heat of fusion of water.
		Note that latent heat of fusion literally means "hidden heat which causes melting".
		Heat is removed from the water bath to both melt the ice and warm the melted ice water to an equilibrium temperature.
	phoenix.phys.clemson.edu /labs/223/spheat/index.html (2092 words)

	Find the Heat of Fusion for Water
		C) on the y-axis and heat (J) on the x-axis.
		Set the heat lost by the water = the total heat gained by the ice which includes both the heat of fusion and temperature change equation for the ice.
		The ACCEPTED value for the heat of fusion for water is 334 J per gram.
	www.newtrier.k12.il.us /academics/faculty/gridleyj/Heatfusion.Thomsen.05.htm (417 words)

	The Science of Heat Fusion Welding
		The fundamental of heat fusion welding is to heat two hdpe pipe surfaces to an appropriate temperature, changing the resin's molecular structure to an amorphous (pliable state, and then fuse them together by application of prescribed force until cooling occurs, returning the material to a crystalline state and creating one homogeneous pipe.
		The end result is a fusion joint that is as strong or stronger than the pipe itself, and this creates the leak-free joint that is one of the amazing strengths of HDPE pipe.
		A heating element or heating plate is inserted in between the faced ends, and the pipe is drawn together against the heating plate.
	www.oxfordplasticsinc.com /heatfusionwelding.htm (452 words)

	Battelle - Energy Products - Heat Fusion Joining (Site not responding. Last check: )
		Heat fusion is the most common method of joining polyethylene (PE) pipe and fittings in gas distribution piping.
		Heater temperature, heating time, and pressure were varied during the joining of about 200 butt joints made from four materials and 50 socket joints made from three materials.
		By using the nomographs, it is possible to assess the influence of ambient temperature, heater temperature, heating time, and wall thickness on the quality of butt-fused joints.
	www.battelle.org /energy/cases/fusion.stm (372 words)

	Latent Heat of Fusion (Site not responding. Last check: )
		The purpose of the experiment is to determine the latent heat of fusion of ice.
		Using the data collected and the equation above, the latent heat of fusion of ice may be found.
		The student should calculate the latent heat of fusion of ice and compare it with the acutal by calculating the percentage error.
	physics.uwstout.edu /Univphys1/labs/latent.htm (408 words)

	Velcro
		Velcro Fabric Fusion Heat-Activated Adhesive 3/4"X1" 12 Sets Black
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	store.quilting-warehouse.com /yhst-96748182234973/fasteners-velcro.html (298 words)

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