Equilibrium Rate Constant given kf and kb Calculator

✖Forward Reaction Rate Constant for 2nd Order is used to define the relationship between the molar concentration of the reactants and the rate of the chemical reaction in forward direction.ⓘ Forward Reaction Rate Constant for 2nd Order [k_f']			+10% -10%
✖Backward Reaction Rate Constant for 2nd Order is the proportionality constant relating the rate of the chemical reaction to the conc. of reactant or product in a backward reaction.ⓘ Backward Reaction Rate Constant for 2nd Order [k_b']			+10% -10%

✖Equilibrium Constant of a reaction is a state approached by a dynamic chemical system after sufficient time has elapsed at which its composition has no measurable tendency towards further change.ⓘ Equilibrium Rate Constant given kf and kb [K_eqm]

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Equilibrium Rate Constant given kf and kb Solution

STEP 0: Pre-Calculation Summary

Formula Used

Equilibrium Constant = Forward Reaction Rate Constant for 2nd Order/Backward Reaction Rate Constant for 2nd Order
K_eqm = k_f'/k_b'
This formula uses 3 Variables

Variables Used

Equilibrium Constant - Equilibrium Constant of a reaction is a state approached by a dynamic chemical system after sufficient time has elapsed at which its composition has no measurable tendency towards further change.
Forward Reaction Rate Constant for 2nd Order - (Measured in Cubic Meter per Mole Second) - Forward Reaction Rate Constant for 2nd Order is used to define the relationship between the molar concentration of the reactants and the rate of the chemical reaction in forward direction.
Backward Reaction Rate Constant for 2nd Order - (Measured in Cubic Meter per Mole Second) - Backward Reaction Rate Constant for 2nd Order is the proportionality constant relating the rate of the chemical reaction to the conc. of reactant or product in a backward reaction.

STEP 1: Convert Input(s) to Base Unit

Forward Reaction Rate Constant for 2nd Order: 0.00618 Liter per Mole Second --> 6.18E-06 Cubic Meter per Mole Second (Check conversion here)
Backward Reaction Rate Constant for 2nd Order: 0.000378 Liter per Mole Second --> 3.78E-07 Cubic Meter per Mole Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

K_eqm = k_f'/k_b' --> 6.18E-06/3.78E-07

Evaluating ... ...

K_eqm = 16.3492063492063

STEP 3: Convert Result to Output's Unit

16.3492063492063 --> No Conversion Required

FINAL ANSWER

16.3492063492063 ≈ 16.34921 <-- Equilibrium Constant

(Calculation completed in 00.004 seconds)

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< Microscopic Reversibility Calculators

Concentration of Product C given kf and kb

LaTeX Go Concentration of Product C at Equilibrium = Forward Reaction Rate Constant for 2nd Order/Backward Reaction Rate Constant for 2nd Order*((Concentration of Reactant A at Equilibrium*Concentration of Reactant B at Equilibrium)/Concentration of Product D at Equilibrium)

Forward Rate Constant given Keq and kb

LaTeX Go Forward Reaction Rate Constant given kf and Keq = Equilibrium Constant for Second Order Reaction*Backward Reaction Rate Constant for 2nd Order

Backward Reaction Rate Constant given Keq and kf

LaTeX Go Backward Reaction Rate Constant given kf and Keq = Equilibrium Constant*Forward Reaction Rate Constant for 2nd Order

Equilibrium Rate Constant given kf and kb

LaTeX Go Equilibrium Constant = Forward Reaction Rate Constant for 2nd Order/Backward Reaction Rate Constant for 2nd Order

< Important Formulas on Reversible Reaction Calculators

Reactant Concentration at given Time t

LaTeX Go Concentration of A at Time t = Initial Concentration of Reactant A*(Forward Reaction Rate Constant/(Forward Reaction Rate Constant+Backward Reaction Rate Constant))*((Backward Reaction Rate Constant/Forward Reaction Rate Constant)+exp(-(Forward Reaction Rate Constant+Backward Reaction Rate Constant)*Time))

Product Conc for 1st Order Opposed by 1st Order Rxn given Initial Conc of B greater than 0

LaTeX Go Concentration of Product at Time t = Concentration of Reactant at Equilibrium*(1-exp(-Forward Reaction Rate Constant*((Initial Concentration of Reactant A+Initial Concentration of Reactant B)/(Initial Concentration of Reactant B+Concentration of Reactant at Equilibrium))*Time))

Product Conc of First Order Opposed by First Order Reaction given Initial Conc of Reactant

LaTeX Go Concentration of Product at Time t = Concentration of Reactant at Equilibrium*(1-exp(-Forward Reaction Rate Constant*Time*(Initial Concentration of Reactant A/Concentration of Reactant at Equilibrium)))

Product Concentration of 1st Order Opposed by 1st Order Reaction at given Time t

LaTeX Go Concentration of Product at Time t = Concentration of Reactant at Equilibrium*(1-exp(-(Forward Reaction Rate Constant+Backward Reaction Rate Constant)*Time))

Equilibrium Rate Constant given kf and kb Formula

LaTeX Go

Equilibrium Constant = Forward Reaction Rate Constant for 2nd Order/Backward Reaction Rate Constant for 2nd Order
K_eqm = k_f'/k_b'

What is an Opposing Reaction?

Opposing reactions or reversible reactions are those in which both forward and backward reaction takes place simultaneously. To start with, the rate of forward reaction is very large and it decreases as reactant concentration decreases with time. Similarly, initially the rate of backward reaction is slow and it increases as product concentration increases with time. The state at which the rate of forward reaction equals the rate of backward reaction is called the equilibrium state.
Thus, equilibrium is a dynamic equilibrium where all the participants of a reaction are being formed as fast as they are being destroyed and hence no further change in the various concentrations is observed.

How to Calculate Equilibrium Rate Constant given kf and kb?

Equilibrium Rate Constant given kf and kb calculator uses Equilibrium Constant = Forward Reaction Rate Constant for 2nd Order/Backward Reaction Rate Constant for 2nd Order to calculate the Equilibrium Constant, The Equilibrium Rate Constant given kf and kb formula is defined as the ratio of the forward reaction rate constant to the backward reaction rate constant. Equilibrium Constant is denoted by K_eqm symbol.

How to calculate Equilibrium Rate Constant given kf and kb using this online calculator? To use this online calculator for Equilibrium Rate Constant given kf and kb, enter Forward Reaction Rate Constant for 2nd Order (k_f') & Backward Reaction Rate Constant for 2nd Order (k_b') and hit the calculate button. Here is how the Equilibrium Rate Constant given kf and kb calculation can be explained with given input values -> 16.34921 = 6.18E-06/3.78E-07.

FAQ

What is Equilibrium Rate Constant given kf and kb?

The Equilibrium Rate Constant given kf and kb formula is defined as the ratio of the forward reaction rate constant to the backward reaction rate constant and is represented as K_eqm = k_f'/k_b' or Equilibrium Constant = Forward Reaction Rate Constant for 2nd Order/Backward Reaction Rate Constant for 2nd Order. Forward Reaction Rate Constant for 2nd Order is used to define the relationship between the molar concentration of the reactants and the rate of the chemical reaction in forward direction & Backward Reaction Rate Constant for 2nd Order is the proportionality constant relating the rate of the chemical reaction to the conc. of reactant or product in a backward reaction.

How to calculate Equilibrium Rate Constant given kf and kb?

The Equilibrium Rate Constant given kf and kb formula is defined as the ratio of the forward reaction rate constant to the backward reaction rate constant is calculated using Equilibrium Constant = Forward Reaction Rate Constant for 2nd Order/Backward Reaction Rate Constant for 2nd Order. To calculate Equilibrium Rate Constant given kf and kb, you need Forward Reaction Rate Constant for 2nd Order (k_f') & Backward Reaction Rate Constant for 2nd Order (k_b'). With our tool, you need to enter the respective value for Forward Reaction Rate Constant for 2nd Order & Backward Reaction Rate Constant for 2nd Order and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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