A student runs two experiments with a constant-volume "bomb" calorimeter containing 1100. g of water (see sketch a right). First, a 7.500 g tablet of benzoic acid (CH₂CO₂H) is put into the "bomb" and burned completely in an excess of oxygen. (Benzoic acid is known to have a heat of combustion of 26.454 kJ/g.) The temperature of the water is observed to rise from 24.00 °C to 65.95 °C over a time of 6.6 minutes. Next, 5.060 g of ethylene (C₂H4) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 24.00 °C to 77.48 °C. Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: C.H.(g) + 30. (g) 260.(g) + 2H.0(g)
A student runs two experiments with a constant-volume "bomb" calorimeter containing 1100. g of water (see sketch a right). First, a 7.500 g tablet of benzoic acid (CH₂CO₂H) is put into the "bomb" and burned completely in an excess of oxygen. (Benzoic acid is known to have a heat of combustion of 26.454 kJ/g.) The temperature of the water is observed to rise from 24.00 °C to 65.95 °C over a time of 6.6 minutes. Next, 5.060 g of ethylene (C₂H4) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 24.00 °C to 77.48 °C. Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: C.H.(g) + 30. (g) 260.(g) + 2H.0(g)
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Step 1: Interpretation of problem statement
VIEWStep 2: Determine whether reaction is exothermic, endothermic or neither.
VIEWStep 3: Determination of Heat of reaction, bomb calorimeter and water for the first reaction
VIEWStep 4: Determination of Specific heat capacity of bomb calorimeter
VIEWStep 5: Determination of heat released in second experiment =
VIEWStep 6: Determination of reaction enthalpy per mole ethylene
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