The heat required to sustain animals that hibernate comes from the biochemical oxidation of fatty acids, one of which is arachidonic acid whose. combustion (unbalanced) is shown below: + O₂(g) CO₂(g) + H₂O(1) Standard molar enthalpy of formation of arachidonic acid is -636 kJ mol-¹. Given : C(s) + O₂(g) → CO₂(g), AH = -393.5 kJ (mol CO₂)-¹ OH 2H₂(g) + O₂(g) → 2H₂O(l), AH = -571.6 (mol O₂)-1 Calculate the mass of arachidonic acid needed to warm a 500 kg bear from 5°C to 25°C. Assume that the average heat capacity of bear flesh is 4.18 Jg-¹ k-¹.
The heat required to sustain animals that hibernate comes from the biochemical oxidation of fatty acids, one of which is arachidonic acid whose. combustion (unbalanced) is shown below: + O₂(g) CO₂(g) + H₂O(1) Standard molar enthalpy of formation of arachidonic acid is -636 kJ mol-¹. Given : C(s) + O₂(g) → CO₂(g), AH = -393.5 kJ (mol CO₂)-¹ OH 2H₂(g) + O₂(g) → 2H₂O(l), AH = -571.6 (mol O₂)-1 Calculate the mass of arachidonic acid needed to warm a 500 kg bear from 5°C to 25°C. Assume that the average heat capacity of bear flesh is 4.18 Jg-¹ k-¹.
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
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Chapter7: Chemical Energy
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Problem 59E: In a coffee-cup calorimeter, 50.0 mL of 0.100 M AgNO3 and 50.0 mL of 0.100 M HCl are mixed to yield...
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Transcribed Image Text:The heat required to sustain animals that hibernate comes from the biochemical oxidation of fatty acids, one of which is arachidonic acid whose
combustion (unbalanced) is shown below:
OH
+ O₂(g) → CO₂(g) + H₂O(l)
Standard molar enthalpy of formation of arachidonic acid is -636 kJ mol-¹.
Given : C(s) + O₂(g) → CO₂(g), AH = -393.5 kJ (mol CO₂)-¹
2H₂(g) + O₂(g) → 2H₂O(), AH = -571.6 (mol 0₂)-¹
Calculate the mass of arachidonic acid needed to warm a 500 kg bear from 5°C to 25°C. Assume that the average heat capacity of bear flesh is 4.18
Jg-¹K-¹.
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