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Topic: Specific heat


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  specific heat. The Columbia Encyclopedia, Sixth Edition. 2001-05
ratio of the heat capacity of a substance to the heat capacity of a reference substance, usually water.
Heat capacity is the amount of heat needed to change the temperature of a unit mass 1°.
Because the heat capacities of most substances vary with changes in temperature, the temperatures of both the specified substance and the reference substance must be known in order to give a precise value for the specific heat.
www.bartleby.com /65/sp/specheat.html   (220 words)

  
 Specific heat capacity - Wikipedia, the free encyclopedia
The specific heat capacity (symbol c or s, also called specific heat) of a substance is defined as heat capacity per unit mass.
The equivalent definition using cgs units is the amount of energy (measured in ergs) required to raise the temperature of one gram of the substance by one degree Celsius (erg/(g·°C)).
MIT - specific heat capacities of all the elements : [1]
en.wikipedia.org /wiki/Specific_heat_capacity   (304 words)

  
 Heat - Wikipedia, the free encyclopedia
Heat flows between regions that are not in thermal equilibrium; in particular, it flows from areas of high temperature to areas of low temperature.
Radiative heat transfer is the only form of heat transfer that can occur in the absence of any form of medium and as such is the only means of heat transfer through a vacuum.
Heat pipe: Using latent heat and capilliary action to move heat, it can carry many times as much heat as a similar sized copper rod and is starting to have applications in laptop personal computers.
en.wikipedia.org /wiki/Heat   (1619 words)

  
 Specific Heat
The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius.
The specific heat per gram for water is much higher than that for a metal, as described in the water-metal example.
The molar specific heats of most solids at room temperature and above are nearly constant, in agreement with the Law of Dulong and Petit.
hyperphysics.phy-astr.gsu.edu /hbase/thermo/spht.html   (319 words)

  
 Heat - Heat and energy   (Site not responding. Last check: 2007-11-05)
The specific heat capacity of a substance is defined as:
Note that when 1 kg of a substance cools by 1 K, an amount of heat equal to the specific heat capacity is lost to the surroundings.
The heat capacity of a body is obtained by multiplying its specific heat capacity by its mass in kilograms.
www.physchem.co.za /Heat/Specific.htm   (378 words)

  
 specific heat   (Site not responding. Last check: 2007-11-05)
Specific heat is another physical property of matter.
The answer is given by the specific heat (S) of the object.
Thus, the specific heat of a gallon of milk is equal to the specific heat of a quart of milk.
www.iun.edu /~cpanhd/C101webnotes/matter-and-energy/specificheat.html   (448 words)

  
 Physics 20: Specific Heat Capacity and Latent Heat   (Site not responding. Last check: 2007-11-05)
Specific heat capacity is the quantity of heat required to raise the temperature of a unit of mass of a substance by a unit change in temperature.
T is the change in temperature in °C or K. The derived unit for c, the specific heat capacity, is J/(kg°C) The specific heat capacity of a substance depends on its molecular structure and on its phase.
The specific latent heat of a substance is the quantity of heat energy required to change the state of a unit mass of a substance.
www.sasked.gov.sk.ca /docs/physics/u4b2phy.html   (872 words)

  
 Specific Heat   (Site not responding. Last check: 2007-11-05)
Specific heat is defined as the amount of heat energy required to raise 1 g of a substance by 1° Celsius.
Water is slower to heat, but is also slower to lose heat, so the temperatures in the area do not fluctuate to the extremes as areas distanced from large bodies of water.
Since the mass of the water is known, as well as the change in temperature and specific heat of the water, it is simple to calculate how much heat energy was needed to produce the temperature change.
www.gmhsscience.com /problems/heat.htm   (810 words)

  
 Specific heat capacity -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-11-05)
The specific heat capacity (symbol c or s, also called specific heat) of a substance is defined as (Click link for more info and facts about heat capacity) heat capacity per unit (The property of a body that causes it to have weight in a gravitational field) mass.
Heat capacity can be measured by using (Measurement of quantities of heat) calorimetry.
(Heat absorbed or radiated during a change of phase at a constant temperature and pressure) latent heat
www.absoluteastronomy.com /encyclopedia/s/sp/specific_heat_capacity.htm   (435 words)

  
 Specific Heat Calculations
According to lab calculations, the specific heat of copper, Cu, (in J/gºC) is:
According to lab calculations, the specific heat of silver, Ag, (in J/gºC) is:
According to lab calculations, the specific heat of wood, (in J/gºC) is:
www.sciencegeek.net /Shockwave/SpecificHeat.htm   (244 words)

  
 SCH4U: Specific Heat Capacity and Molar Heat Capacity   (Site not responding. Last check: 2007-11-05)
Three examples are heat capacity, molar heat capacity, specific heat capacity, which is usually just called specific heat.
The specific heat of any substance is the energy needed to raise the temperature of one gram of it by one degree Celsius.
The energy involved in joules is equivalent to the mass in grams times the specific heat capacity of the substance times the change in temperature in degrees Celsius.
www.ucdsb.on.ca /tiss/stretton/chem2/enthal03.htm   (202 words)

  
 Specific Heat
When a substance is heated, the heat gained, q, depends upon three important factors; the mass, m, of the substance in grams, the specific heat of the substance, cp, and the substance's change in temperature,
The specific heat of a substance is an intensive physical property, reflecting the type of bonding and intermolecular forces in the substance.
Since the mass of the calorimeter and the specific heat of the calorimeter do not change, their product, m x cp calorimeter, is a constant, which is referred to as the "heat capacity of the calorimeter," or C'.
www.iit.edu /~smart/martcar/lesson5/id37.htm   (1571 words)

  
 Specific Heat
specific heat of a substance is defined at the amount of heat that must be absorbed or lost for 1 g of that substance to change its temperature by 1º C. The specific heat of water is 1.00 cal/g ºC. Compared with most other substances, water has an unusually high specific heat.
Heat must be absorbed in order to break hydrogen bonds, and heat is released when hydrogen bonds form.
A calorie of heat causes a relatively small change in the temperature because must of the heat energy is used to disrupt hydrogen bonds before the water molecules can begin moving faster.
www.sciencebyjones.com /specific_heat1.htm   (733 words)

  
 ChemTeam: Specific Heat   (Site not responding. Last check: 2007-11-05)
The specific heat is an important part of energy calculations since it tells you how much energy is needed to move each gram of the substance one degree.
In fact, the specific heat value of a substance changes from degree to degree, but we will ignore that.
That is because the specific heat is measured on the basis of one degree.
dbhs.wvusd.k12.ca.us /webdocs/Thermochem/Specific-Heat.html   (269 words)

  
 Debye Theory of Specific Heat
Einstein's oscillator treatment of specific heat gave qualitative agreement with experiment and gave the correct high temperature limit (the Law of Dulong and Petit).
The final step in explaining the low temperature specific heats of metals was the inclusion of the electron contribution to specific heat.
Bose-Einstein statistics is used to describe the contribution from lattice vibrations (phonons), and Fermi-Dirac statistics must be used to describe the electron contribution to the specific heat.
hyperphysics.phy-astr.gsu.edu /hbase/thermo/debye.html   (428 words)

  
 Lesson 1-7 Heat vs. Temperature   (Site not responding. Last check: 2007-11-05)
Heat is the transfer of thermal energy from a hotter to a colder object.
An object with at a higher temperature can release more heat than the same object at a lower temperature, but temperature is only one of the factors that affect the amount of heat an object can transfer.
The factors that affect the amount of heat are the same as the factors that affect thermal energy, for reasons that should now be clear to you.
www.fordhamprep.com /gcurran/sho/sho/lessons/lesson17.htm   (611 words)

  
 Read about Specific heat capacity at WorldVillage Encyclopedia. Research Specific heat capacity and learn about ...   (Site not responding. Last check: 2007-11-05)
Research Specific heat capacity and learn about Specific heat capacity here!
The SI unit for specific heat capacity is the
hydrogen bonding in water) then the heat capacity is likely to be higher.
encyclopedia.worldvillage.com /s/b/Specific_heat_capacity   (163 words)

  
 Specific Heat   (Site not responding. Last check: 2007-11-05)
The specific heat of water is 4.184 J/(g·˚C).
The substance reaches a final temperature of 32.9°C. Determine the specific heat of the metal.
The solution to this problem will reflect how the specific heat of an unknown metal will be determined in a lab experiment later this week.
chs26115-01.k12.fsu.edu /heat.html   (524 words)

  
 Day 16: Heat and Specific Heat   (Site not responding. Last check: 2007-11-05)
calorie: the amt of energy (or heat) needed to raise the temperature of 1 gram of water 1 degree Celsius.
British Thermal Unit: the amt of energy (or heat) needed to raise the temperature of 1 pound of water 1 degree Fahrenheit.
The constant of proportionality is the specific heat of the material (see table 4.2, p.
www.nku.edu /~longa/classes/sci110/days/day16.html   (240 words)

  
 Specific Heat and Heat of Fusion Demo   (Site not responding. Last check: 2007-11-05)
Liquid water has a specific heat of 4.18 (joule)/(gram-degree).
Heat spent on the fusion of ice in water and the heating of water from melted ice is equal to the heat consumed from the cooling of the initial amount of water.
Where C1 is the specific heat of water and C2 is the heat of fusion of water.
www.cwru.edu /artsci/phys/courses/demos/spec.htm   (195 words)

  
 Specific Heat   (Site not responding. Last check: 2007-11-05)
Conversion of macroscopic energy to microscopic kinetic energy thus tends to raise the temperature, while the reverse conversion lowers it.
It is easy to show experimentally that the amount of heating needed to change the temperature of a body by some amount is proportional to the amount of matter in the body.
is called the specific heat of the material in question and is the amount of energy needed to raise the temperature of a unit mass of material one degree in temperature.
www.physics.nmt.edu /~raymond/classes/ph13xbook/node227.html   (102 words)

  
 specific heat on Encyclopedia.com
Mojave Therapeutics Announces Publication on the Identification Of an Important Heat Shock Protein Receptor; -- Discovery Paves Way for Enhancing Heat Shock Protein-Based Vaccines --.
As Server Blades Heat Up, Hewlett-Packard Tries To Keep Them Cool; HP debuts data-center analysis service that lets users determine the impact of server heat on equipment.
Radio frequency puts the heat on plant pests.
www.encyclopedia.com /html/s1/specheat.asp   (457 words)

  
 Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations   (Site not responding. Last check: 2007-11-05)
S> The specific heat of holmium is measured between 0.95 and 4.2 deg K. The magnetic hyperfinen interaction in holmium is so large that over this entire temperature range the nuclear hyperfine term represents the predominant contribution to the specific heat.
Below l.5 deg K the specific heat appears to be that of an ideal paramagnetic gas of spin 7/2.
At 1 deg K the specific heat has the extremely large value of 0.37R.
www.osti.gov /energycitations/product.biblio.jsp?osti_id=4827525   (162 words)

  
 Specific Heat Capacity   (Site not responding. Last check: 2007-11-05)
The specific heat capacity of a solid or liquid is defined as the heat required to raise unit mass of substance by one degree of temperature.
Cp = Specific heat capacity at constant pressure, i.e.
Cv = Specific heat capacity at constant volume, i.e.
www.taftan.com /thermodynamics/CP.HTM   (108 words)

  
 AllRefer.com - specific heat (Physics) - Encyclopedia
You are here : AllRefer.com > Reference > Encyclopedia > Physics > specific heat
specific heat, ratio of the heat capacity of a substance to the heat capacity of a reference substance, usually water.
More articles from AllRefer Reference on specific heat
reference.allrefer.com /encyclopedia/S/specheat.html   (269 words)

  
 Specific Heat   (Site not responding. Last check: 2007-11-05)
Here is one such graph taken from Perry's Chemical Engineers' Handbook for the specific heats for a select group of compounds.
Translate the graph to an equivalent computer program such that the program returns the specific heat at a specified temperature for any one of the compounds given in the graph.
In the following program, we find the coordinates by viewing the.gif image file of the graph in an image program (e.g., Photoshop or Paint Shop) and reading the coordinates under the cursor.
www.glue.umd.edu /~nsw/ench250/specheat.htm   (149 words)

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