6) What standard condition(s) the electrochemistry experiment? are violated when using the version of the Nernst equation used in E = E° – (RT/nF) In Q where: reaction quotient; Q has the same form as the expression for the equilibrium constant, but the concentrations differ from the equilibrium value. When Q = K, E = 0.000 volts. temperature in Kelvin. In most electrochemical work, measurements are taken at 25°C and T is considered a constant (298 K). gas constant, 8.314 JK¯|mol! number of electrons transferred per mole of reactant "standard cell (or half-cell) potential". Cell potential when Q= 1, i.e, when all reactants are at unit concentration (or more explicitly, activity). E° F (Faraday) = charge on 1 mole of electrons = 96,485 J/V-mol (per mole of electrons). Substituting the values for the constants into the Nernst equation (assuming T = 298 K) and converting InQ to log10Q (multiply by 2.303 = In10): E = E° - (0.0592/n) log10 Q (E & E° in volts) or E = E° – (59/n) log10 Q (E and E° in millivolts)

6) What standard condition(s) the electrochemistry experiment? are violated when using the version of the Nernst equation used in E = E° – (RT/nF) In Q where: reaction quotient; Q has the same form as the expression for the equilibrium constant, but the concentrations differ from the equilibrium value. When Q = K, E = 0.000 volts. temperature in Kelvin. In most electrochemical work, measurements are taken at 25°C and T is considered a constant (298 K). gas constant, 8.314 JK¯|mol! number of electrons transferred per mole of reactant "standard cell (or half-cell) potential". Cell potential when Q= 1, i.e, when all reactants are at unit concentration (or more explicitly, activity). E° F (Faraday) = charge on 1 mole of electrons = 96,485 J/V-mol (per mole of electrons). Substituting the values for the constants into the Nernst equation (assuming T = 298 K) and converting InQ to log10Q (multiply by 2.303 = In10): E = E° - (0.0592/n) log10 Q (E & E° in volts) or E = E° – (59/n) log10 Q (E and E° in millivolts)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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