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The specific heat capacity of a substance is the amount of energy needed the change the temperature of 1kg of the substance by 1 kelvin. (j/Kg/K) laws_and_definitions.doc.

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Presentation on theme: "The specific heat capacity of a substance is the amount of energy needed the change the temperature of 1kg of the substance by 1 kelvin. (j/Kg/K) laws_and_definitions.doc."— Presentation transcript:

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2 The specific heat capacity of a substance is the amount of energy needed the change the temperature of 1kg of the substance by 1 kelvin. (j/Kg/K) laws_and_definitions.doc URL LINK

3 http://www.ac.wwu.edu/~vawter/PhysicsNet/Topics/Thermal/HeatCapTable.html How to measure http://www.ioppublishing.com/activity/education/Projects/T eaching%20Advanced%20Physics/Energy/Thermal%20p hysics/file_5208.doc URL LINK

4 http://www.chalkbored.com/lessons/chemistry-11/thermochemistry- handout.pdf c quoted per Kg 0.387 5 60 116.1 0.13 3.117.9 7.2137

5 The main determination of heat capacity is its molecular weight. Hydrogen has a low molecular weight and in turn has a very high heat capacity [c=14.307 J/gK]. Hydrogen isn't practical for uses as an insulator though. Styrofoam and many ceramics are quite heat resistant, but the best "insulator" is actually a total vacuum. Gold, being a heavy metal, has a very low heat capacity [c=0.128 J/gK]. Radon also has a very high molecular weight, and has a heat capacity of just 0.09 J/gK. I'm not certain that these are the highest and lowest heat capacities of all substances, but they are the highest and lowest of all the elements.

6 http://chemistry.umeche.maine.edu/~amar/fall2002/bom b.jpg Measuring the heat of a specific reaction What is happening? How does it work?

7 http://www.usc.edu/CSSF/History/2005/Projects/J0502.pdf http://www.woodrow.org/teachers/chemistry/institutes/1988/foodheat.html View! important

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