Chp 6 - Forms of energy...

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http://www.geography4kids.com/files/art/en_solrad1_240.jpg http://content.answers.com/main/content/wp/en-commons/thumb/8/88/250px-Nuclear_Power_Plant_Cattenom.jpg http://www.hedgerow.co.uk/hpl/images/as1-large.jpg http://www.historyoftheuniverse.com/images/burningmethane.gif http://www.solarschools.net/Facts_and_Figures/img/dg_electrical_energy.jpg http://www.parentcompany.com/creation_explanation/fig2-1.gif Forms of energy
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Interaction of system with surroundings State function Path function
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Heat and Transfer of thermal energy Heat is the transfer of thermal energy that results due to changes in temperature. Measured in calories and Joules (1cal =4.184 J). Time = 0 Time > 0 Hot object Colder object Temperature: A measure of hotness or coldness of an object.
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Quantity of heat (q) Molar heat capacity of a system (C): Heat required to change the temperature of 1 mole of a system 1 0 Specific heat: Heat required to change the temperature of 1 gram of a system 1 0 Quantity of heat (q) = mass x specific heat x temperature change m x Sp.heat x Δ T C x Δ T http://cwx.prenhall.com/petrucci/medialib/media_portfolio/text_images/FG07_03.JPG q sys = - q surr If a substance X has a specific heat of 0.435 J/g 0 C, what mass of the substance will cause a rise in temperature water from 30 0 C to 100 0 C?
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Chp 6 - Forms of energy...

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