What temperature increase would be expected if the same 1.200 g sample of benzoic acid were combusted when the calorimeter contained 1.00 kg of water? Ccal(dry) = 2.39 kJ/°C qrxn = qeal = [Ccal,dry (AT) + Ccal,H2o(AT)] qcal = [Ccal,dry (AT) + (mH,0)(CH,0)(AT)] Combine like terms using AT. qrxn = -31.66 kJ %3D %3D %3D 31.66 kJ = [2.39 kJ/°C + (1.00 kg x 4.184 kJ/kg°C)](AT) %3D AT = [ ? ] °C %3D

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Chapter8: Thermochemistry
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What temperature increase would be expected if
the same 1.200 g sample of benzoic acid were
combusted when the calorimeter contained
1.00 kg of water?
9rxn = -31.66 kJ
Ccal(dry) = 2.39 kJ/°C
9rxn = qcal = [Ccal,dry (AT) + Ccal,H,o(AT)]
9cal = [Ccal,dry(AT) + (mH;0)(CH,0)(AT)]
Combine like terms using AT.
31.66 kJ = [2.39 kJ/°C + (1.00 kg x 4.184 kJ/kg°C)](AT)
AT = [ ? ] °C
AT (°C)
Enter
Transcribed Image Text:Ilus_engine.html?ClassID=527350766# What temperature increase would be expected if the same 1.200 g sample of benzoic acid were combusted when the calorimeter contained 1.00 kg of water? 9rxn = -31.66 kJ Ccal(dry) = 2.39 kJ/°C 9rxn = qcal = [Ccal,dry (AT) + Ccal,H,o(AT)] 9cal = [Ccal,dry(AT) + (mH;0)(CH,0)(AT)] Combine like terms using AT. 31.66 kJ = [2.39 kJ/°C + (1.00 kg x 4.184 kJ/kg°C)](AT) AT = [ ? ] °C AT (°C) Enter
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