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# Equilibrium Constant Calculator

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## Equilibrium Constant

Equilibrium Constant is of chemical reaction and its values are given by the reaction quotient at chemical equilibrium. Equilibrium Constant number states that the relationship between the amounts of products and reactants available in the equilibrium and is reversible at a chemical reaction at a given temperature.

### Equilibrium Constant Calculator

Here, we need to apply the law of mass action to a reversible reaction at equilibrium

## Equilibrium Constant

 Enter the Coefficient of Reactant 1: Enter the Concentration of Reactant 1: moles Enter the Coefficient of Reactant 2: Enter the Concentration of Reactant 2: moles Enter the Coefficient of Product 1: Enter the Concentration of Product 1: moles Enter the Coefficient of Product 2: Enter the Concentration of Reactant 2: moles Equilibrium Constant(Kc):=

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A+B–> C+D

From this formula we will get the chemical equilibrium

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By using this, we can get the Equilibrium Constant Kc is given as:

Kc=([C]c [D]d)/([A]a [B]b)

Where [A],[B] is the molar concentrations of reactant A and B and [C], [D]is the molar concentrations of products C and D.

### Methods for Equilibrium Calculator

Step 1:  Read the problem and the given response and observe whether the reactants and products concentration are given.

Step 2:  Using the formula

Kc=([C]c [D]d)/([A]a [B]b)

Apply the given capacity in this formula; we get the required equilibrium constant.

### Problems on Equilibrium Constant Calculator

Calculate the equilibrium Constant of the following reaction:

2NO + 2H2 —> N2 + 2H2O.

Where N2 = 0.019 M

H2O = 0.12 M

NO = 0.158 M

H2 = 0.010 M.

Step 1:

The given reaction is

2NO + 2H2 —> N2 + 2H2O.

Where N2 = 0.019 M

H2O = 0.12 M

NO = 0.158 M

H2 = 0.010 M.

Step 2 :  Using the formula

Kc=([C]c [D]d)/([A]a [B]b)

= ([0.019][0.12])/([0.058]2[0.010]2)

=6777.64

Answer:

Therefore the given equilibrium Constant Kc = 6777.64.