Forward Rate Constant given Dissociation Rate Constant Calculator

✖The Reverse Rate Constant is defined as the rate constant for the backward reaction.ⓘ Reverse Rate Constant [k_r]			+10% -10%
✖The Dissociation Rate Constant is the ratio of reverse and forward rate constant.ⓘ Dissociation Rate Constant [K_D]			+10% -10%

✖The Forward Rate Constant is defined as the rate constant for the forward occurring reaction.ⓘ Forward Rate Constant given Dissociation Rate Constant [k_f]

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Formula

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Forward Rate Constant given Dissociation Rate Constant

Formula

`"k"_{"f"} = ("k"_{"r"}/"K"_{"D"})`

Example

`"3.508772s⁻¹"=("20mol/L*s"/"5.7mol/L")`

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Forward Rate Constant given Dissociation Rate Constant Solution

STEP 0: Pre-Calculation Summary

Formula Used

Forward Rate Constant = (Reverse Rate Constant/Dissociation Rate Constant)
k_f = (k_r/K_D)
This formula uses 3 Variables

Variables Used

Forward Rate Constant - (Measured in 1 Per Second) - The Forward Rate Constant is defined as the rate constant for the forward occurring reaction.
Reverse Rate Constant - (Measured in Mole per Cubic Meter Second) - The Reverse Rate Constant is defined as the rate constant for the backward reaction.
Dissociation Rate Constant - (Measured in Mole per Cubic Meter) - The Dissociation Rate Constant is the ratio of reverse and forward rate constant.

STEP 1: Convert Input(s) to Base Unit

Reverse Rate Constant: 20 Mole per Liter Second --> 20000 Mole per Cubic Meter Second (Check conversion here)
Dissociation Rate Constant: 5.7 Mole per Liter --> 5700 Mole per Cubic Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

k_f = (k_r/K_D) --> (20000/5700)

Evaluating ... ...

k_f = 3.50877192982456

STEP 3: Convert Result to Output's Unit

3.50877192982456 1 Per Second --> No Conversion Required

FINAL ANSWER

3.50877192982456 ≈ 3.508772 1 Per Second <-- Forward Rate Constant

(Calculation completed in 00.004 seconds)

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< 16 Rate Constants of Enzymatic Reaction Calculators

Forward Rate Constant in Enzymatic Reaction mechanism

Go Forward Rate Constant = (Reverse Rate Constant*Enzyme Substrate Complex Concentration)/(Substrate Concentration*(Initial Enzyme Concentration-Enzyme Substrate Complex Concentration))

Reverse Rate Constant in Enzymatic Reaction Mechanism

Go Reverse Rate Constant = (Forward Rate Constant*Substrate Concentration*(Initial Enzyme Concentration-Enzyme Substrate Complex Concentration))/Enzyme Substrate Complex Concentration

Forward Rate Constant given Reverse and Catalytic Rate Constant

Go Forward Rate Constant = (Reverse Rate Constant+Catalytic Rate Constant)*(Enzyme Substrate Complex Concentration/(Catalyst Concentration*Substrate Concentration))

Reverse Rate Constant given Forward and Catalytic Rate Constants

Go Reverse Rate Constant = ((Forward Rate Constant*Catalyst Concentration*Substrate Concentration)/Enzyme Substrate Complex Concentration)-Catalytic Rate Constant

Catalytic Rate Constant given Reverse and Forward Rate Constant

Go Catalytic Rate Constant = ((Forward Rate Constant*Catalyst Concentration*Substrate Concentration)/Enzyme Substrate Complex Concentration)-Reverse Rate Constant

Catalytic Rate Constant given Dissociation Rate Constant

Go Catalytic Rate Constant = (Initial Reaction Rate*(Dissociation Rate Constant+Substrate Concentration))/(Initial Enzyme Concentration*Substrate Concentration)

Dissociation Rate Constant given Catalytic Rate Constant

Go Dissociation Rate Constant = ((Catalytic Rate Constant*Initial Enzyme Concentration*Substrate Concentration)/Initial Reaction Rate)-Substrate Concentration

Catalytic Rate Constant at Low Substrate Concentration

Go Catalytic Rate Constant = (Initial Reaction Rate*Michaelis Constant)/(Initial Enzyme Concentration*Substrate Concentration)

Dissociation Rate Constant given Concentration of Enzyme and Substrate

Go Dissociation Rate Constant = ((Maximum Rate*Substrate Concentration)/Initial Reaction Rate)-Substrate Concentration

Reverse Rate Constant given Michaelis Constant

Go Reverse Rate Constant = (Michaelis Constant*Forward Rate Constant)-Catalytic Rate Constant

Rate Constant given Initial Rate and Enzyme Substrate Complex Concentration

Go Final Rate Constant = Initial Reaction Rate/Enzyme Substrate Complex Concentration

Forward Rate Constant given Dissociation Rate Constant

Go Forward Rate Constant = (Reverse Rate Constant/Dissociation Rate Constant)

Reverse Rate Constant given Dissociation Rate Constant

Go Reverse Rate Constant = (Dissociation Rate Constant*Forward Rate Constant)

Dissociation Rate Constant in Enzymatic Reaction Mechanism

Go Dissociation Rate Constant = Reverse Rate Constant/Forward Rate Constant

Rate of Chemical Reaction

Go Rate of chemical reaction = Change in concentration/Total time interval

Rate Constant given Maximum Rate and Initial Enzyme Concentration

Go Final Rate Constant = Maximum Rate/Initial Enzyme Concentration

< 25 Important Formulas on Enzyme Kinetics Calculators

Final Rate Constant for Competitive Inhibition of Enzyme Catalysis

Go Final Rate Constant for Catalysis = (Initial Reaction Rate*(Michaelis Constant*(1+(Inhibitor Concentration/Enzyme Inhibitor Dissociation Constant))+Substrate Concentration))/(Initial Enzyme Concentration*Substrate Concentration)

Inhibitor Concentration for Competitive Inhibition of Enzyme Catalysis

Go Inhibitor Concentration given IEC = (((((Final Rate Constant*Initial Enzyme Concentration*Substrate Concentration)/Initial Reaction Rate)-Substrate Concentration)/Michaelis Constant)-1)*Enzyme Inhibitor Dissociation Constant

Michaelis Constant in Competitive Inhibition given Enzyme Substrate Complex Concentration

Go Michaelis Constant = (((Initial Enzyme Concentration*Substrate Concentration)/Enzyme Substrate Complex Concentration)-Substrate Concentration)/(1+(Inhibitor Concentration/Enzyme Inhibitor Dissociation Constant))

Enzyme Substrate Complex Concentration for Competitive Inhibition of Enzyme Catalysis

Go Enzyme Substrate Complex Concentration = (Substrate Concentration*Initial Enzyme Concentration)/(Michaelis Constant*(1+(Inhibitor Concentration/Enzyme Inhibitor Dissociation Constant))+Substrate Concentration)

Inhibitor Concentration in Competitive Inhibition given Maximum Rate of System

Go Inhibitor Concentration given Max Rate = (((((Maximum Rate*Substrate Concentration)/Initial Reaction Rate)-Substrate Concentration)/Michaelis Constant)-1)*Enzyme Inhibitor Dissociation Constant

Initial Rate in Competitive Inhibition given Maximum Rate of system

Go Initial Reaction Rate in CI = (Maximum Rate*Substrate Concentration)/(Michaelis Constant*(1+(Inhibitor Concentration/Enzyme Inhibitor Dissociation Constant))+Substrate Concentration)

Enzyme Catalyst Concentration given Forward, Reverse, and Catalytic Rate Constants

Go Catalyst Concentration = ((Reverse Rate Constant+Catalytic Rate Constant)*Enzyme Substrate Complex Concentration)/(Forward Rate Constant*Substrate Concentration)

Catalytic Rate Constant from Michaelis Menten Kinetics Equation

Go Catalytic Rate Constant for MM = (Initial Reaction Rate*(Michaelis Constant+Substrate Concentration))/(Initial Enzyme Concentration*Substrate Concentration)

Enzyme Concentration from Michaelis Menten Kinetics equation

Go Initial Concentration of Enzyme = (Initial Reaction Rate*(Michaelis Constant+Substrate Concentration))/(Catalytic Rate Constant*Substrate Concentration)

Substrate Concentration given Catalytic Rate Constant and Initial Enzyme Concentration

Go Concentration of Substrate = (Michaelis Constant*Initial Reaction Rate)/((Catalytic Rate Constant*Initial Enzyme Concentration)-Initial Reaction Rate)

Initial Enzyme Concentration given Dissociation Rate Constant

Go Enzyme Concentration Initially = (Enzyme Substrate Complex Concentration*(Dissociation Rate Constant+Substrate Concentration))/(Substrate Concentration)

Initial Reaction Rate given Dissociation Rate Constant

Go Initial Reaction Rate given DRC = (Maximum Rate*Substrate Concentration)/(Dissociation Rate Constant+Substrate Concentration)

Maximum Rate given Dissociation Rate Constant

Go Maximum Rate given DRC = (Initial Reaction Rate*(Dissociation Rate Constant+Substrate Concentration))/Substrate Concentration

Inhibitor Concentration given Apparent Initial Enzyme Concentration

Go Inhibitor Concentration for CI = ((Initial Enzyme Concentration/Apparent Initial Enzyme Concentration)-1)*Enzyme Inhibitor Dissociation Constant

Initial Concentration of Enzyme in presence of Inhibitor by Enzyme Conservation Law

Go Enzyme Concentration Initially = (Catalyst Concentration+Enzyme Substrate Complex Concentration+Enzyme Inhibitor Complex Concentration)

Michaelis Constant given Forward, Reverse, and Catalytic Rate Constants

Go Michaelis Constant = (Reverse Rate Constant+Catalytic Rate Constant)/Forward Rate Constant

Inhibitor Concentration given Enzyme Substrate Modifying Factor

Go Inhibitor Concentration = (Enzyme Substrate Modifying Factor-1)*Enzyme Substrate Dissociation Constant

Modifying Factor of Enzyme Substrate Complex

Go Enzyme Substrate Modifying Factor = 1+(Inhibitor Concentration/Enzyme Substrate Dissociation Constant)

Dissociation Constant of Enzyme given Modifying Factor of Enzyme

Go Enzyme Inhibitor Dissociation Constant given MF = Inhibitor Concentration/(Enzyme Modifying Factor-1)

Initial Rate of System given Rate Constant and Enzyme Substrate Complex Concentration

Go Initial Reaction Rate given RC = Final Rate Constant*Enzyme Substrate Complex Concentration

Forward Rate Constant given Dissociation Rate Constant

Go Forward Rate Constant = (Reverse Rate Constant/Dissociation Rate Constant)

Dissociation Rate Constant in Enzymatic Reaction Mechanism

Go Dissociation Rate Constant = Reverse Rate Constant/Forward Rate Constant

Initial Enzyme Concentration if Substrate Concentration is Higher than Michaelis Constant

Go Enzyme Concentration Initially = Maximum Rate/Catalytic Rate Constant

Catalytic Rate Constant if Substrate Concentration is higher than Michaelis Constant

Go Catalytic Rate Constant = Maximum Rate/Initial Enzyme Concentration

Maximum Rate if Substrate Concentration is Higher than Michaelis Constant

Go Maximum Rate = Catalytic Rate Constant*Initial Enzyme Concentration

Forward Rate Constant given Dissociation Rate Constant Formula

Forward Rate Constant = (Reverse Rate Constant/Dissociation Rate Constant)
k_f = (k_r/K_D)

What is Michaelis–Menten kinetics model?

In biochemistry, Michaelis–Menten kinetics is one of the best-known models of enzyme kinetics. Biochemical reactions involving a single substrate are often assumed to follow Michaelis–Menten kinetics, without regard to the model's underlying assumptions. The model takes the form of an equation describing the rate of enzymatic reactions, by relating the reaction rate of formation of product to the concentration of a substrate.

How to Calculate Forward Rate Constant given Dissociation Rate Constant?

Forward Rate Constant given Dissociation Rate Constant calculator uses Forward Rate Constant = (Reverse Rate Constant/Dissociation Rate Constant) to calculate the Forward Rate Constant, The Forward rate constant given dissociation rate constant formula is defined as the ratio of the reverse rate constant to the dissociation rate constant. Forward Rate Constant is denoted by k_f symbol.

How to calculate Forward Rate Constant given Dissociation Rate Constant using this online calculator? To use this online calculator for Forward Rate Constant given Dissociation Rate Constant, enter Reverse Rate Constant (k_r) & Dissociation Rate Constant (K_D) and hit the calculate button. Here is how the Forward Rate Constant given Dissociation Rate Constant calculation can be explained with given input values -> 3.508772 = (20000/5700).

FAQ

What is Forward Rate Constant given Dissociation Rate Constant?

The Forward rate constant given dissociation rate constant formula is defined as the ratio of the reverse rate constant to the dissociation rate constant and is represented as k_f = (k_r/K_D) or Forward Rate Constant = (Reverse Rate Constant/Dissociation Rate Constant). The Reverse Rate Constant is defined as the rate constant for the backward reaction & The Dissociation Rate Constant is the ratio of reverse and forward rate constant.

How to calculate Forward Rate Constant given Dissociation Rate Constant?

The Forward rate constant given dissociation rate constant formula is defined as the ratio of the reverse rate constant to the dissociation rate constant is calculated using Forward Rate Constant = (Reverse Rate Constant/Dissociation Rate Constant). To calculate Forward Rate Constant given Dissociation Rate Constant, you need Reverse Rate Constant (k_r) & Dissociation Rate Constant (K_D). With our tool, you need to enter the respective value for Reverse Rate Constant & Dissociation Rate Constant 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 Forward Rate Constant?

In this formula, Forward Rate Constant uses Reverse Rate Constant & Dissociation Rate Constant. We can use 2 other way(s) to calculate the same, which is/are as follows -

Forward Rate Constant = (Reverse Rate Constant*Enzyme Substrate Complex Concentration)/(Substrate Concentration*(Initial Enzyme Concentration-Enzyme Substrate Complex Concentration))
Forward Rate Constant = (Reverse Rate Constant+Catalytic Rate Constant)*(Enzyme Substrate Complex Concentration/(Catalyst Concentration*Substrate Concentration))

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