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Copy of Copy of Chemistry-Thermal Energy

Chemistry IB

Glen Phelps

on 13 February 2011

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Transcript of Copy of Copy of Chemistry-Thermal Energy

Thermal Energy Specific Heat Heat Endothermic Exothermic Temperature Heat Capacity Thermal Energy Calorimetry The amount of heat needed to raise 1 gram of a substance by 1 degree Celsius. q = mass (m) x Specific heat(Cp) x change in temperature (T) UNITS: J grams J / goC oC Calculations Transfer of thermal NRG between objects due to temperature difference. Hot Cold Total PE & KE of all paritcles. mass temperature phase Which has more thermal energy? Measure of hotness or coldness compared to a reference. Related to the average KE of particles in an object due to their random motions through space. Heat by Glen Phelps is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.
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