The heat capacity of a bomb calorimeter was determined by burning 6.87 g of methane (energy of combustion = -803 kJ/mol CH4) in the bomb. The temperature changed by 10.9°C. (a) What is the heat capacity of the bomb? X kJ/°C (b) A 13.7-g sample of ethanol (C₂H5OH) produced a temperature increase of 11.6°C in the same calorimeter. What is the energy of combustion of ethanol (in kJ/mol)? X kJ/mol

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Chapter5: Thermochemistry
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Problem 31E: When a 0.740-g sample of trinitrotoluene (TNT), C7H5N2O6, is burned in a bomb calorimeter, the...
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The heat capacity of bomb calorimeter was determined by burning 6.87 g of methane (energy of combustion = −803 kJ/mol CH4) in the bomb. The temperature changed by 10.9°C.
(a) What is the heat capacity of the bomb?
X kJ/°C
(b) A 13.7-g sample of ethanol (C₂H5OH) produced a temperature increase of 11.6°C in the same calorimeter. What is the energy of combustion of ethanol (in kJ/mol)?
kJ/mol
Transcribed Image Text:The heat capacity of bomb calorimeter was determined by burning 6.87 g of methane (energy of combustion = −803 kJ/mol CH4) in the bomb. The temperature changed by 10.9°C. (a) What is the heat capacity of the bomb? X kJ/°C (b) A 13.7-g sample of ethanol (C₂H5OH) produced a temperature increase of 11.6°C in the same calorimeter. What is the energy of combustion of ethanol (in kJ/mol)? kJ/mol
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