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Living organisms use energy from the metabolism of food to create an energy-rich molecule called adenosine triphosphate (ATP). The ATP then acts as an energy source for a variety of reactions that the living organism must carry out to survive. ATP provides energy through its hydrolysis, which can be sym- bolized as follows: ATP(aq)+ H2O(!) –→ ADP(aq) + P((aq) 4,G° = -30.5 kJ mol¬1 where ADP represents adenosine diphosphate and P, represents an inorganic phosphate group (such as HPO,?-). a. Calculate the equilibrium constant, K, for the above reaction at 298 K. b. The Gibbs energy obtained from the oxidation (reaction with oxygen) of glucose (C,H12O6) to form carbon dioxide and water can be used to re-form ATP by driving the above reaction in reverse. Calculate the standard Gibbs energy change for the oxidation of glucose and estimate the max- imum number of moles of ATP that can be formed by the oxidation of one mole of glucose.

Living organisms use energy from the metabolism of food to create an energy-rich molecule called adenosine triphosphate (ATP). The ATP then acts as an energy source for a variety of reactions that the living organism must carry out to survive. ATP provides energy through its hydrolysis, which can be sym- bolized as follows: ATP(aq)+ H2O(!) –→ ADP(aq) + P((aq) 4,G° = -30.5 kJ mol¬1 where ADP represents adenosine diphosphate and P, represents an inorganic phosphate group (such as HPO,?-). a. Calculate the equilibrium constant, K, for the above reaction at 298 K. b. The Gibbs energy obtained from the oxidation (reaction with oxygen) of glucose (C,H12O6) to form carbon dioxide and water can be used to re-form ATP by driving the above reaction in reverse. Calculate the standard Gibbs energy change for the oxidation of glucose and estimate the max- imum number of moles of ATP that can be formed by the oxidation of one mole of glucose.

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter18: Principles Of Chemical Reactivity: Entropy And Free Energy
Section: Chapter Questions
Problem 88SCQ
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85. Living organisms use energy from the metabolism of food to create an energy-rich molecule called adenosine triphosphate (ATP). The ATP then acts as an energy source for a variety of reactions that the living organism must carry out to survive. ATP provides energy through its hydrolysis, which can be sym- bolized as follows: ATP(ag) + H20(1) → ADP(ag) + P(aq) 4,G° = -30.5 kJ mol¬ where ADP represents adenosine diphosphate and P; represents an inorganic phosphate group (such as HPO,2-). a. Calculate the equilibrium constant, K, for the above reaction at 298 K. b. The Gibbs energy obtained from the oxidation (reaction with oxygen) of glucose (C,H12O6) to form carbon dioxide and water can be used to re-form ATP by driving the above reaction in reverse. Calculate the standard Gibbs energy change for the oxidation of glucose and estimate the max- imum number of moles of ATP that can be formed by the oxidation of one mole of glucose.
Transcribed Image Text:85. Living organisms use energy from the metabolism of food to create an energy-rich molecule called adenosine triphosphate (ATP). The ATP then acts as an energy source for a variety of reactions that the living organism must carry out to survive. ATP provides energy through its hydrolysis, which can be sym- bolized as follows: ATP(ag) + H20(1) → ADP(ag) + P(aq) 4,G° = -30.5 kJ mol¬ where ADP represents adenosine diphosphate and P; represents an inorganic phosphate group (such as HPO,2-). a. Calculate the equilibrium constant, K, for the above reaction at 298 K. b. The Gibbs energy obtained from the oxidation (reaction with oxygen) of glucose (C,H12O6) to form carbon dioxide and water can be used to re-form ATP by driving the above reaction in reverse. Calculate the standard Gibbs energy change for the oxidation of glucose and estimate the max- imum number of moles of ATP that can be formed by the oxidation of one mole of glucose.
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