Akshada Kulkarni
National Institute of Information Technology (NIIT), Neemrana
Akshada Kulkarni has created this Calculator and 300+ more calculators!
Pragati Jaju
College Of Engineering (COEP), Pune
Pragati Jaju has verified this Calculator and 200+ more calculators!

8 Other formulas that you can solve using the same Inputs

Pre-exponential factor for backward reaction in terms of Arrhenius equation
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)) GO
Pre-exponential factor for forward reaction in terms of Arrhenius equation
Forward Pre-exponential factor=(Forward reaction rate constant*Backward Pre-exponential factor)/(Backward reaction rate constant*exp((Activation energy backward-Activation energy forward)/([R]*Absolute temperature))) GO
Backward reaction rate constant in terms of Arrhenius equation
Backward reaction rate constant=(Forward reaction rate constant*Backward Pre-exponential factor)/(Forward Pre-exponential factor*exp((Activation energy backward-Activation energy forward)/([R]*Absolute temperature))) GO
Forward reaction rate constant in terms of Arrhenius equation
Forward reaction rate constant=((Forward Pre-exponential factor*Backward reaction rate constant)/Backward Pre-exponential factor)*exp((Activation energy backward-Activation energy forward)/([R]*Absolute temperature)) GO
Pre-exponential factor in Arrhenius equation for backward reaction
Backward Pre-exponential factor=Backward reaction rate constant/exp(-(Activation energy backward/([R]*Absolute temperature))) GO
Pre-exponential factor in Arrhenius equation for forward reaction
Forward Pre-exponential factor=Forward reaction rate constant/exp(-(Activation energy forward/([R]*Absolute temperature))) GO
Backward reaction rate constant
Backward reaction rate constant=Forward reaction rate constant/Equilibrium constant GO
Forward reaction rate constant
Forward reaction rate constant=Equilibrium constant*Backward reaction rate constant GO

5 Other formulas that calculate the same Output

Equilibrium constant in terms of Arrhenius equation
Equilibrium constant=(Forward Pre-exponential factor/Backward Pre-exponential factor)*exp((Activation energy backward-Activation energy forward)/([R]*Absolute temperature)) GO
Relation between equilibrium constant and with respect to mole fraction constant
Equilibrium constant=(Equilibrium constant for mole fraction*(Total pressure^Change in number of moles))/(([R]*Absolute temperature)^Change in number of moles) GO
Equilibrium constant with respect to molar concentrations
Equilibrium constant=(Equilibrium concentration of C*Equilibrium concentration of D)/(Equilibrium concentration of A*Equilibrium concentration of B) GO
Equilibrium constant when equilibrium partial pressure constant is given
Equilibrium constant=Equilibrium constant for partial pressure /(([R]*Absolute temperature)^Change in number of moles) GO
Equilibrium Constant (when degree of dissociation is given)
Equilibrium constant=Initial concentration*Degree of Dissociation^2/(1-Degree of Dissociation) GO

Equilibrium constant Formula

Equilibrium constant=Forward reaction rate constant/Backward reaction rate constant
K<sub>c</sub>=K<sub>f</sub>/K<sub>b</sub>
More formulas
Forward reaction rate constant GO
Backward reaction rate constant GO
Equilibrium concentration of substance A GO
Equilibrium concentration of substance B GO
Equilibrium concentration of substance C GO
Equilibrium concentration of substance D GO
Change in number of moles GO
Number of moles of gaseous products GO
Number of moles of gaseous reactants GO

What is equilibrium constant?

Equilibrium constant is defined as the product of concentration of products at equilibrium by the product of concentration of reactants at equilibrium. This representation is known as equilibrium law or chemical equilibrium. The thermodynamically correct equilibrium constant expression relates the activities of all of the species present in the reaction.

How to Calculate Equilibrium constant?

Equilibrium constant calculator uses Equilibrium constant=Forward reaction rate constant/Backward reaction rate constant to calculate the Equilibrium constant, The Equilibrium constant formula is defined as the ratio of the product concentrations to reactant concentrations. Equilibrium constant and is denoted by Kc symbol.

How to calculate Equilibrium constant using this online calculator? To use this online calculator for Equilibrium constant, enter Forward reaction rate constant (Kf) and Backward reaction rate constant (Kb) and hit the calculate button. Here is how the Equilibrium constant calculation can be explained with given input values -> 0.002 = 200000/100000.

FAQ

What is Equilibrium constant?
The Equilibrium constant formula is defined as the ratio of the product concentrations to reactant concentrations and is represented as Kc=Kf/Kb or Equilibrium constant=Forward reaction rate constant/Backward reaction rate constant. Forward reaction rate constant is the rate of forward reaction and Backward reaction rate constant is the rate of backward reaction.
How to calculate Equilibrium constant?
The Equilibrium constant formula is defined as the ratio of the product concentrations to reactant concentrations is calculated using Equilibrium constant=Forward reaction rate constant/Backward reaction rate constant. To calculate Equilibrium constant, you need Forward reaction rate constant (Kf) and Backward reaction rate constant (Kb). With our tool, you need to enter the respective value for Forward reaction rate constant and Backward reaction 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 Equilibrium constant?
In this formula, Equilibrium constant uses Forward reaction rate constant and Backward reaction rate constant. We can use 5 other way(s) to calculate the same, which is/are as follows -
  • Equilibrium constant=(Equilibrium concentration of C*Equilibrium concentration of D)/(Equilibrium concentration of A*Equilibrium concentration of B)
  • Equilibrium constant=Initial concentration*Degree of Dissociation^2/(1-Degree of Dissociation)
  • Equilibrium constant=Equilibrium constant for partial pressure /(([R]*Absolute temperature)^Change in number of moles)
  • Equilibrium constant=(Equilibrium constant for mole fraction*(Total pressure^Change in number of moles))/(([R]*Absolute temperature)^Change in number of moles)
  • Equilibrium constant=(Forward Pre-exponential factor/Backward Pre-exponential factor)*exp((Activation energy backward-Activation energy forward)/([R]*Absolute temperature))
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