Difference between revisions of "Bioblast quiz"
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'''Convert the molar format of the Gibbs force of reaction, ΔkFnO2 [kJ/mol], into the electrical format, ΔkFeO2 [V].''' | '''Convert the molar format of the Gibbs force of reaction, ΔkFnO2 [kJ/mol], into the electrical format, ΔkFeO2 [V].''' | ||
<quiz display=simple shuffleanswers=true> | <quiz display=simple shuffleanswers=true> | ||
{Which physicochemical constant is required? | {Which physicochemical constant is required? | ||
|type="[]"} | |type="[]"} | ||
+ The | + The [[Faraday constant]], ''F'' = ''e''·''N''<sub>A</sub> = 96,485.33 C/mol | ||
|| | || Explanation | ||
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{ | {What is the meaning of the symbol ''z''<sub>O2</sub>? | ||
|type="()"} | |type="[]"} | ||
+ | + [[Charge number]] of O<sub>2</sub> = 4 | ||
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{How are the units of electric energy [J] and electric force [V] related? | |||
|type="[]"} | |||
+ V = J/C. | |||
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{Express -460 kJ/mol O<sub>2</sub> as electrical force in units of volt [V]. | |||
|type="[]"} | |||
+ -460 [kJ/mol]/(4·''e''·''N''<sub>A</sub> [C/mol]) = -460 [kJ/mol]/(4·96,485.33 [C/mol]) = -0.00119189 kJ/C = -1.2 J/C = -1.2 V | |||
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{Why should we do that? | |||
|type="[]"} | |||
+ To relate the driving force of electron transfer to the pmf, we have to express both forces in identical [[motive unit]]s [MU], converting either the force of the chemical reaction from the [[molar format]] to the [[electrical format]], or the pmf from the electrical to the molar format. | |||
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Revision as of 20:12, 4 November 2018
Self educational quizzes
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Exemplary Quiz
(Note: Questions in this exemplary quiz were used from a set of questions prepared by Gnaiger Erich for his presentation at MiPschool Tromso-Bergen 2018: The protonmotive force and respiratory control. 1. Coupling of electron transfer reactions to vectorial translocation of protons. 2. From Einstein’s diffusion equation on gradients to Fick’s law on compartments.
Original link here: Gnaiger 2018 MiPschool Tromso A2
(Only one correct answer)
Convert the molar format of the Gibbs force of reaction, ΔkFnO2 [kJ/mol], into the electrical format, ΔkFeO2 [V].