2008 Midterm HQ1A






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Marisa Mekkittikul2E
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2008 Midterm HQ1A

Postby Marisa Mekkittikul2E » Sun Feb 07, 2016 11:06 pm

Coupled reactions are used in organisms to drive important biochemical processes. Individual chemical reactions may be added together to form a net reaction, and the overall reaction Gibbs free energy is the sum of the individual Gibbs free energies of reaction. For example, ATP is the primary molecule that stores and releases energy to drive vital nonspontaneous chemical reactions in our bodies. However, the generation of ATP from ADP is nonspontaneous and must itself be coupled to a spontaneous reaction. This process is called oxidative phosphorylation. What amount (in moles) of ATP could be formed if all the Gibbs free energy released in the oxidation of three moles of NADH were used to generate ATP?

Question: Why is the final answer divided by 30.5kJ?

Chem_Mod
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Re: 2008 Midterm HQ1A

Postby Chem_Mod » Mon Feb 08, 2016 11:25 am

Could you give more details about the problem. I'm unable to find that practice midterm in the course reader. Presumably you need a some sort of chemical equation for the process.

Katrina_Domingo_3G
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Joined: Wed Sep 21, 2016 2:59 pm

Re: 2008 Midterm HQ1A

Postby Katrina_Domingo_3G » Wed Mar 15, 2017 10:28 pm

What is the logic behind dividing it by 30.5 kJ?
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