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Pre-exponential Factor in Arrhenius Equation for Backward Reaction Calculator

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✖Backward Reaction Rate Constant is the rate of backward reaction.ⓘ Backward Reaction Rate Constant [K_b]			+10% -10%
✖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.ⓘ Activation Energy Backward [E_ab]			+10% -10%
✖Absolute Temperature is defined as the measurement of temperature beginning at absolute zero on the Kelvin scale.ⓘ Absolute Temperature [T_abs]			+10% -10%

✖Backward Pre-exponential factor is the pre-exponential constant in the Arrhenius equation, an empirical relationship between temperature and rate coefficient for backward reaction.ⓘ Pre-exponential Factor in Arrhenius Equation for Backward Reaction [A_b]

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Pre-exponential Factor in Arrhenius Equation for Backward Reaction Solution

STEP 0: Pre-Calculation Summary

Formula Used

Backward Pre-exponential factor = Backward Reaction Rate Constant/exp(-(Activation Energy Backward/([R]*Absolute Temperature)))
A_b = K_b/exp(-(E_ab/([R]*T_abs)))
This formula uses 1 Constants, 1 Functions, 4 Variables

Constants Used

[R] - Universal gas constant Value Taken As 8.31446261815324

Functions Used

exp - n an exponential function, the value of the function changes by a constant factor for every unit change in the independent variable., exp(Number)

Variables Used

Backward Pre-exponential factor - (Measured in 1 per Second) - Backward Pre-exponential factor is the pre-exponential constant in the Arrhenius equation, an empirical relationship between temperature and rate coefficient for backward reaction.
Backward Reaction Rate Constant - (Measured in Mole per Cubic Meter) - Backward Reaction Rate Constant is the rate of backward reaction.
Activation Energy Backward - (Measured in Joule) - 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.
Absolute Temperature - (Measured in Kelvin) - Absolute Temperature is defined as the measurement of temperature beginning at absolute zero on the Kelvin scale.

STEP 1: Convert Input(s) to Base Unit

Backward Reaction Rate Constant: 70 Mole per Liter --> 70000 Mole per Cubic Meter (Check conversion here)
Activation Energy Backward: 250 Electron-Volt --> 4.00544332500002E-17 Joule (Check conversion here)
Absolute Temperature: 273.15 Kelvin --> 273.15 Kelvin No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

A_b = K_b/exp(-(E_ab/([R]*T_abs))) --> 70000/exp(-(4.00544332500002E-17/([R]*273.15)))

Evaluating ... ...

A_b = 70000

STEP 3: Convert Result to Output's Unit

70000 1 per Second --> No Conversion Required

FINAL ANSWER

70000 1 per Second <-- Backward Pre-exponential factor

(Calculation completed in 00.004 seconds)

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< Arrhenius Equation Calculators

Pre-exponential Factor in Arrhenius Equation for Forward Reaction

LaTeX Go Forward Pre-exponential Factor = Forward reaction rate constant/exp(-(Activation Energy Forward/([R]*Absolute Temperature)))

Arrhenius Equation for Forward Reaction

LaTeX Go Forward reaction rate constant = Forward Pre-exponential Factor*exp(-(Activation Energy Forward/([R]*Absolute Temperature)))

Arrhenius Equation

LaTeX Go Rate Constant = Pre-Exponential Factor*(exp(-(Activation Energy/([R]*Absolute Temperature))))

Pre-exponential Factor in Arrhenius Equation

LaTeX Go Pre-Exponential Factor = Rate Constant/exp(-(Activation Energy/([R]*Absolute Temperature)))

Pre-exponential Factor in Arrhenius Equation for Backward Reaction Formula

LaTeX Go

Backward Pre-exponential factor = Backward Reaction Rate Constant/exp(-(Activation Energy Backward/([R]*Absolute Temperature)))
A_b = K_b/exp(-(E_ab/([R]*T_abs)))

What is Arrhenius Equation?

The Arrhenius equation is a formula for the temperature dependence of reaction rates. The equation was proposed by Svante Arrhenius in 1889, based on the work of Dutch chemist Jacobus Henricus van 't Hoff who had noted in 1884 that the van 't Hoff equation for the temperature dependence of equilibrium constants suggests such a formula for the rates of both forward and reverse reactions. This equation has a vast and important application in determining rate of chemical reactions and for calculation of energy of activation.

How to Calculate Pre-exponential Factor in Arrhenius Equation for Backward Reaction?

Pre-exponential Factor in Arrhenius Equation for Backward Reaction calculator uses Backward Pre-exponential factor = Backward Reaction Rate Constant/exp(-(Activation Energy Backward/([R]*Absolute Temperature))) to calculate the Backward Pre-exponential factor, The Pre-exponential factor in Arrhenius equation for backward reaction formula is defined as an empirical relationship between temperature, T and rate coefficient, k for backward reaction. Backward Pre-exponential factor is denoted by A_b symbol.

How to calculate Pre-exponential Factor in Arrhenius Equation for Backward Reaction using this online calculator? To use this online calculator for Pre-exponential Factor in Arrhenius Equation for Backward Reaction, enter Backward Reaction Rate Constant (K_b), Activation Energy Backward (E_ab) & Absolute Temperature (T_abs) and hit the calculate button. Here is how the Pre-exponential Factor in Arrhenius Equation for Backward Reaction calculation can be explained with given input values -> 70000 = 70000/exp(-(4.00544332500002E-17/([R]*273.15))).

FAQ

What is Pre-exponential Factor in Arrhenius Equation for Backward Reaction?

The Pre-exponential factor in Arrhenius equation for backward reaction formula is defined as an empirical relationship between temperature, T and rate coefficient, k for backward reaction and is represented as A_b = K_b/exp(-(E_ab/([R]*T_abs))) or Backward Pre-exponential factor = Backward Reaction Rate Constant/exp(-(Activation Energy Backward/([R]*Absolute Temperature))). Backward Reaction Rate Constant is the rate of backward reaction, 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 & Absolute Temperature is defined as the measurement of temperature beginning at absolute zero on the Kelvin scale.

How to calculate Pre-exponential Factor in Arrhenius Equation for Backward Reaction?

The Pre-exponential factor in Arrhenius equation for backward reaction formula is defined as an empirical relationship between temperature, T and rate coefficient, k for backward reaction is calculated using Backward Pre-exponential factor = Backward Reaction Rate Constant/exp(-(Activation Energy Backward/([R]*Absolute Temperature))). To calculate Pre-exponential Factor in Arrhenius Equation for Backward Reaction, you need Backward Reaction Rate Constant (K_b), Activation Energy Backward (E_ab) & Absolute Temperature (T_abs). With our tool, you need to enter the respective value for Backward Reaction Rate Constant, Activation Energy Backward & Absolute Temperature and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Backward Pre-exponential factor?

In this formula, Backward Pre-exponential factor uses Backward Reaction Rate Constant, Activation Energy Backward & Absolute Temperature. We can use 1 other way(s) to calculate the same, which is/are as follows -

Backward Pre-exponential factor = ((Forward Pre-exponential Factor*Backward Reaction Rate Constant)/Forward reaction rate constant)*exp((Activation Energy Backward-Activation Energy Forward)/([R]*Absolute Temperature))

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