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Activation Energy for Backward Reaction Formula

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Activation Energy Backward is the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo a chemical transformation for a backward reaction. Check FAQs

E ab = E af - ΔH

E_ab - Activation Energy Backward?E_af - Activation Energy Forward?ΔH - Enthalpy of Reaction?

Activation Energy for Backward Reaction Example

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Here is how the Activation Energy for Backward Reaction equation looks like with Values.

Here is how the Activation Energy for Backward Reaction equation looks like with Units.

Here is how the Activation Energy for Backward Reaction equation looks like.

-1.9E+24 = 150 - 300

-1.9E+24eV = 150eV - 300KJ/mol

-1.9E+24 = 150 - 300

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Activation Energy for Backward Reaction Solution

Follow our step by step solution on how to calculate Activation Energy for Backward Reaction?

FIRST Step Consider the formula

E ab = E af - ΔH

Next Step Substitute values of Variables

∴

E ab = 150eV - 300KJ/mol

Next Step Convert Units

∴

E ab = 2.4E-17J - 300000J/mol

Next Step Prepare to Evaluate

∴

E ab = 2.4E-17 - 300000

Next Step Evaluate

∴

E ab = -300000J

Next Step Convert to Output's Unit

∴

E ab = -1.8724519089282E+24eV

LAST Step Rounding Answer

∴

E ab = -1.9E+24eV

Activation Energy for Backward Reaction Formula Elements

Variables

Activation Energy Backward

Activation Energy Backward is the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo a chemical transformation for a backward reaction.

Symbol: E_ab

Measurement: EnergyUnit: eV

Note: Value can be positive or negative.

Formulas to find Activation Energy Backward

Activation Energy Forward

Activation Energy Forward is the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo a chemical transformation in a forward reaction.

Symbol: E_af

Measurement: EnergyUnit: eV

Note: Value can be positive or negative.

Formulas to find Activation Energy Forward

Enthalpy of Reaction

The Enthalpy of Reaction is the difference in enthalpy between products and reactants.

Symbol: ΔH

Measurement: Energy Per MoleUnit: KJ/mol

Note: Value can be positive or negative.

Formulas to find Enthalpy of Reaction

Other formulas in Arrhenius Equation category

Go Arrhenius Equation

K h = A \cdot (\exp (- (\frac{E a}{[R] \cdot T abs})))

Go Pre-exponential Factor in Arrhenius Equation

A = \frac{K h}{\exp (- (\frac{E a}{[R] \cdot T abs}))}

Go Arrhenius Equation for Forward Reaction

K f = A f \cdot \exp (- (\frac{E af}{[R] \cdot T abs}))

Go Pre-exponential Factor in Arrhenius Equation for Forward Reaction

A f = \frac{K f}{\exp (- (\frac{E af}{[R] \cdot T abs}))}

How to Evaluate Activation Energy for Backward Reaction?

Activation Energy for Backward Reaction evaluator uses Activation Energy Backward = Activation Energy Forward-Enthalpy of Reaction to evaluate the Activation Energy Backward, The Activation energy for backward reaction formula is defined as the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation for a backward reaction. Activation Energy Backward is denoted by E_ab symbol.

How to evaluate Activation Energy for Backward Reaction using this online evaluator? To use this online evaluator for Activation Energy for Backward Reaction, enter Activation Energy Forward (E_af) & Enthalpy of Reaction (ΔH) and hit the calculate button.

FAQs on Activation Energy for Backward Reaction

What is the formula to find Activation Energy for Backward Reaction?

The formula of Activation Energy for Backward Reaction is expressed as Activation Energy Backward = Activation Energy Forward-Enthalpy of Reaction. Here is an example- -1.2E+43 = 2.40326599500001E-17-300000.

How to calculate Activation Energy for Backward Reaction?

With Activation Energy Forward (E_af) & Enthalpy of Reaction (ΔH) we can find Activation Energy for Backward Reaction using the formula - Activation Energy Backward = Activation Energy Forward-Enthalpy of Reaction.

Can the Activation Energy for Backward Reaction be negative?

Yes, the Activation Energy for Backward Reaction, measured in Energy can be negative.

Which unit is used to measure Activation Energy for Backward Reaction?

Activation Energy for Backward Reaction is usually measured using the Electron-Volt[eV] for Energy. Joule[eV], Kilojoule[eV], Gigajoule[eV] are the few other units in which Activation Energy for Backward Reaction can be measured.

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Activation Energy for Backward Reaction Formula

Activation Energy for Backward Reaction Example

Activation Energy for Backward Reaction Solution

Activation Energy for Backward Reaction Formula Elements

Other formulas in Arrhenius Equation category

How to Evaluate Activation Energy for Backward Reaction?

FAQs on Activation Energy for Backward Reaction

Variable Name