Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat of
combustion of fuels and the energy content of foods.
Since the "bomb" itself can absorb energy, a separate experiment is needed to determine the heat capacity of
the calorimeter. This is known as calibrating the calorimeter.
In the laboratory a student burns a 0.981-g sample of L-ascorbic acid (CH3O6) in a bomb calorimeter
containing 1060. g of water. The temperature increases from 24.80 °C to 27.30 °C. The heat capacity of water
is 4.184 Jglc!.
The molar heat of combustion is –2340. kJ per mole of L-ascorbic acid.
C,HgO6(s) + 5 O2(g)6 CO,(9) + 4 H,0(1) + Energy
Calculate the heat capacity of the calorimeter.
heat capacity of calorimeter =
J/°C
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Transcribed Image Text:A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. Since the "bomb" itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter. In the laboratory a student burns a 0.981-g sample of L-ascorbic acid (CH3O6) in a bomb calorimeter containing 1060. g of water. The temperature increases from 24.80 °C to 27.30 °C. The heat capacity of water is 4.184 Jglc!. The molar heat of combustion is –2340. kJ per mole of L-ascorbic acid. C,HgO6(s) + 5 O2(g)6 CO,(9) + 4 H,0(1) + Energy Calculate the heat capacity of the calorimeter. heat capacity of calorimeter = J/°C
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