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Exchange Current Density for Cathodic Reaction from Tafel Equation Formula

GoExchange Current Density for Anodic Reaction from Tafel Equation Formula

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The Exchange Current Density is defined as the current in the absence of net electrolysis and at zero overpotential. Check FAQs

i 0 = \frac{i}{10^{\frac{η}{- A slope}}}

i₀ - Exchange Current Density?i - Electric Current Density?η - Overpotential?A_slope - Tafel Slope?

Exchange Current Density for Cathodic Reaction from Tafel Equation Example

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Here is how the Exchange Current Density for Cathodic Reaction from Tafel Equation equation looks like with Values.

Here is how the Exchange Current Density for Cathodic Reaction from Tafel Equation equation looks like with Units.

Here is how the Exchange Current Density for Cathodic Reaction from Tafel Equation equation looks like.

0.8196 = \frac{0.405}{10^{\frac{0.03}{- 0.098}}}

0.8196A/m² = \frac{0.405A/m²}{10^{\frac{0.03V}{- 0.098V}}}

0.8196 = \frac{0.405}{10^{\frac{0.03}{- 0.098}}}

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Tafel Slope » fx Exchange Current Density for Cathodic Reaction from Tafel Equation

Exchange Current Density for Cathodic Reaction from Tafel Equation Solution

Follow our step by step solution on how to calculate Exchange Current Density for Cathodic Reaction from Tafel Equation?

FIRST Step Consider the formula

i 0 = \frac{i}{10^{\frac{η}{- A slope}}}

Next Step Substitute values of Variables

∴

i 0 = \frac{0.405A/m²}{10^{\frac{0.03V}{- 0.098V}}}

Next Step Prepare to Evaluate

∴

i 0 = \frac{0.405}{10^{\frac{0.03}{- 0.098}}}

Next Step Evaluate

∴

i 0 = 0.819553807328689A/m²

LAST Step Rounding Answer

∴

i 0 = 0.8196A/m²

Exchange Current Density for Cathodic Reaction from Tafel Equation Formula Elements

Variables

Exchange Current Density

The Exchange Current Density is defined as the current in the absence of net electrolysis and at zero overpotential.

Symbol: i₀

Measurement: Surface Current DensityUnit: A/m²

Note: Value can be positive or negative.

Formulas to find Exchange Current Density

Electric Current Density

The Electric current density is the amount of charge per unit of time that flows through the unit area of a chosen cross-section.

Symbol: i

Measurement: Surface Current DensityUnit: A/m²

Note: Value can be positive or negative.

Formulas to find Electric Current Density

Overpotential

The Overpotential is the potential difference between a half-reaction's thermodynamically determined reduction potential and the potential at which the redox event is experimentally observed.

Symbol: η

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Overpotential

Tafel Slope

The Tafel Slope describes how the electrical current through an electrode depends on the voltage difference between the electrode and the bulk electrolyte. The Tafel slope is measured experimentally.

Symbol: A_slope

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Tafel Slope

Other Formulas to find Exchange Current Density

Go Exchange Current Density for Anodic Reaction from Tafel Equation

i 0 = \frac{i}{10^{\frac{η}{+} A slope}}

Other formulas in Tafel Slope category

Go Overpotential for Anodic Reaction from Tafel Equation

η = + (A slope) \cdot (\log 10 (\frac{i}{i 0}))

Go Overpotential for Cathodic Reaction from Tafel Equation

η = - (A slope) \cdot (\log 10 (\frac{i}{i 0}))

Go Tafel Slope for Anodic Reaction from Tafel Equation

A slope = + \frac{η}{\log 10 (\frac{i}{i 0})}

Go Tafel Slope for Cathodic Reaction from Tafel Equation

A slope = - \frac{η}{\log 10 (\frac{i}{i 0})}

How to Evaluate Exchange Current Density for Cathodic Reaction from Tafel Equation?

Exchange Current Density for Cathodic Reaction from Tafel Equation evaluator uses Exchange Current Density = Electric Current Density/(10^(Overpotential/-Tafel Slope)) to evaluate the Exchange Current Density, The Exchange current density for cathodic reaction from Tafel equation formula is defined as the ratio of electric density and the antilog of overpotential to the negative of Tafel slope. Exchange Current Density is denoted by i₀ symbol.

How to evaluate Exchange Current Density for Cathodic Reaction from Tafel Equation using this online evaluator? To use this online evaluator for Exchange Current Density for Cathodic Reaction from Tafel Equation, enter Electric Current Density (i), Overpotential (η) & Tafel Slope (A_slope) and hit the calculate button.

FAQs on Exchange Current Density for Cathodic Reaction from Tafel Equation

What is the formula to find Exchange Current Density for Cathodic Reaction from Tafel Equation?

The formula of Exchange Current Density for Cathodic Reaction from Tafel Equation is expressed as Exchange Current Density = Electric Current Density/(10^(Overpotential/-Tafel Slope)). Here is an example- 20.2359 = 0.405/(10^(0.03/-0.098)).

How to calculate Exchange Current Density for Cathodic Reaction from Tafel Equation?

With Electric Current Density (i), Overpotential (η) & Tafel Slope (A_slope) we can find Exchange Current Density for Cathodic Reaction from Tafel Equation using the formula - Exchange Current Density = Electric Current Density/(10^(Overpotential/-Tafel Slope)).

What are the other ways to Calculate Exchange Current Density?

Here are the different ways to Calculate Exchange Current Density-

Exchange Current Density=Electric Current Density/(10^(Overpotential/+Tafel Slope))

Can the Exchange Current Density for Cathodic Reaction from Tafel Equation be negative?

Yes, the Exchange Current Density for Cathodic Reaction from Tafel Equation, measured in Surface Current Density can be negative.

Which unit is used to measure Exchange Current Density for Cathodic Reaction from Tafel Equation?

Exchange Current Density for Cathodic Reaction from Tafel Equation is usually measured using the Ampere per Square Meter[A/m²] for Surface Current Density. Ampere per Square Centimeter[A/m²], Ampere per Square Inch[A/m²], Ampere per Circular Mil[A/m²] are the few other units in which Exchange Current Density for Cathodic Reaction from Tafel Equation can be measured.

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Exchange Current Density for Cathodic Reaction from Tafel Equation Formula

​GoExchange Current Density for Anodic Reaction from Tafel Equation Formula

Exchange Current Density for Cathodic Reaction from Tafel Equation Example

Exchange Current Density for Cathodic Reaction from Tafel Equation Solution

Exchange Current Density for Cathodic Reaction from Tafel Equation Formula Elements

Other Formulas to find Exchange Current Density

Other formulas in Tafel Slope category

How to Evaluate Exchange Current Density for Cathodic Reaction from Tafel Equation?

FAQs on Exchange Current Density for Cathodic Reaction from Tafel Equation

Variable Name

GoExchange Current Density for Anodic Reaction from Tafel Equation Formula