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Unformatted text preview: CALORIMETRY
M ea sur i ng H ea ts of Rea cti on
Constant Volume “Bomb” Calorimeter Burn combustible sample. • Measure heat evolved in a reaction. • Derive ∆E for reaction. Ca l or i metr y Ca Some heat from reaction warms water qwater = (sp. ht.)(water mass)(∆T) Some heat from reaction warms “bomb” qbomb = (heat capacity, J/°C)(∆T) Total heat evolved = - qrxn = qtotal = qwater + qbomb Figure 6.6 Enthalpy diagrams for exothermic and endothermic processes. ...
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