An electrochemical cell is set up using the following unbalanced reaction: M a + ( a q ) + N ( s ) → N 2 + ( a q ) + M ( s ) The standard reduction potentials are: The cell contains 0.10 M N 2+ and produces a voltage of 0.180 V. If the concentration of M a+ is such that the value of the reaction quotient Q is 9.32 × 10 −3 , calculate [M a+ ]. Calculate w max for this electrochemical cell.
An electrochemical cell is set up using the following unbalanced reaction: M a + ( a q ) + N ( s ) → N 2 + ( a q ) + M ( s ) The standard reduction potentials are: The cell contains 0.10 M N 2+ and produces a voltage of 0.180 V. If the concentration of M a+ is such that the value of the reaction quotient Q is 9.32 × 10 −3 , calculate [M a+ ]. Calculate w max for this electrochemical cell.
Solution Summary: The author explains the Nernst equation used in an electrochemical cell to determine the concentration of left[MTexta+right] and
An electrochemical cell is set up using the following unbalanced reaction:
M
a
+
(
a
q
)
+
N
(
s
)
→
N
2
+
(
a
q
)
+
M
(
s
)
The standard reduction potentials are:
The cell contains 0.10 M N2+ and produces a voltage of 0.180 V. If the concentration of Ma+ is such that the value of the reaction quotient Q is 9.32 × 10−3, calculate [Ma+]. Calculate wmax for this electrochemical cell.
Definition Definition Chemical reactions involving both oxidation and reduction processes. During a redox reaction, electron transfer takes place in such a way that one chemical compound gets reduced and the other gets oxidized.
If we assume a system with an anodic overpotential, the variation of n as a function
of current density:
1. at low fields is linear 2. at higher fields, it follows Tafel's law
Obtain the range of current densities for which the overpotential has the same value
when calculated for 1 and 2 cases (maximum relative difference of 5% compared to
the behavior for higher fields).
To which overpotential range does this correspond?
Data: i = 1.5 mA cm², T = 300°C, B = 0.64, R = 8.314 J K1 mol-1 and F = 96485 C mol-1.
Answer by equation please
Some of the theories used to describe interface structure can be distinguished by:1. the measured potential difference.2. the distribution of ions in solution.3. the calculation of charge density.4. the external Helmoltz plane.
Chapter 17 Solutions
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