IX Thermodynamics Calorimetry

# IX Thermodynamics Calorimetry - Thermodynamics Calorimetry...

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Unformatted text preview: Thermodynamics Calorimetry • Heat (Q,q) – Transfer of thermal energy between two bodies at different temperatures • Isolated system – No exchange of matter or energy with the surroundings – Q = ? – Q = 0 • Heat flow – Endothermic, Q = +, heat absorbed by the system – Exothermic, Q = -, heat given off by the system Calorimetry Deals with the transfer of heat energy Heat Capacity - Capacity of a system to store heat- Heat needed to raise the temperature of a system by 1 o C ( 1K) = J/K q = (capacity of system)( ∆ T) Specific Heat (c) - Heat needed to raise the temperature of 1 gram of material by 1 o C (1K) = J/g K Molar Heat Capacity (C) - Heat needed to raise the temperature of 1 mole of material by 1 o C (1K) = J/ mol K q = ms ∆ T q = nC ∆ T Constant volume Calorimetry Bomb Calorimeter Q = ∆ E Isolated system q system = ? = 0 q system = q sample + q calorimeter q sample = - q calorimeter q sample not directly measurable q calorimeter can be measured q calorimeter...
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## This note was uploaded on 03/01/2009 for the course CHEM 103 taught by Professor Kramer during the Fall '08 term at University of Delaware.

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IX Thermodynamics Calorimetry - Thermodynamics Calorimetry...

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