Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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3
Water
Insulated Sample Burning Steel
sample bomb
dish
outside
chamber
Combustion (bomb) calorimeter.
In an experiment, a 0.3513 g sample of diphenylacetylene (C₁4H10) is burned completely in a bomb calorimeter. The
calorimeter is surrounded by 1.040 x 10³ g of water. During the combustion the temperature increases from 25.80 to
28.45 °C. The heat capacity of water is 4.184 J.g¹. C¹.
The heat capacity of the calorimeter was determined in a previous experiment to be 815.3 J. "C-¹.
Assuming that no energy is lost to the surroundings, calculate the molar heat of combustion of diphenylacetylene based
on these data.
C14H10 (8) + (33/2)O₂(g) → 5H₂O(1) + 14CO₂ (9) + Energy
kJ/mol
Molar Heat of Combustion =
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Transcribed Image Text:Water Insulated Sample Burning Steel sample bomb dish outside chamber Combustion (bomb) calorimeter. In an experiment, a 0.3513 g sample of diphenylacetylene (C₁4H10) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1.040 x 10³ g of water. During the combustion the temperature increases from 25.80 to 28.45 °C. The heat capacity of water is 4.184 J.g¹. C¹. The heat capacity of the calorimeter was determined in a previous experiment to be 815.3 J. "C-¹. Assuming that no energy is lost to the surroundings, calculate the molar heat of combustion of diphenylacetylene based on these data. C14H10 (8) + (33/2)O₂(g) → 5H₂O(1) + 14CO₂ (9) + Energy kJ/mol Molar Heat of Combustion =
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