Efficiency of Energy Transduction in a Molecular Chemical Engine

Details Efficiency of Energy Transduction in a Molecular Chemical Engine Efficiency of Energy Transduction in a Molecular Chemical Engine

2006-07-20

arxiv.org/abs/cond-mat/0607506v2

Physics

Condensed Matter

Statistical Mechanics

4 pages, 4 fugures; title modified, figures 2 and 3 modified, content changed (pages 1 and 4, mainly), references added

Scientific paper

A simple model of the two-state ratchet type is proposed for molecular chemical engines that convert chemical free energy into mechanical work and vice versa. The engine works by catalyzing a chemical reaction and turning a rotor. Analytical expressions are obtained for the dependences of rotation and reaction rates on the concentrations of reactant and product molecules, from which the performance of the engine is analyzed. In particular, the efficiency of energy transduction is discussed in some detail.

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