Equilibrium Constant (Kp) Calculator for Partial Pressures

Calculate Equilibrium Constant (Kp)

Reactants (e.g., 2A + 3B)

Partial Pressure of Reactant A (P_A)

Stoichiometric Coefficient A (a)

Partial Pressure of Reactant B (P_B) (Optional)

Stoichiometric Coefficient B (b) (Optional)

Products (e.g., 4C + 1D)

Partial Pressure of Product C (P_C)

Stoichiometric Coefficient C (c)

Partial Pressure of Product D (P_D) (Optional)

Stoichiometric Coefficient D (d) (Optional)

Use our online Equilibrium Constant (Kp) Calculator to determine the equilibrium constant for gas-phase reactions based on partial pressures. Simplify complex chemical calculations and understand reaction spontaneity and extent with this essential chemistry tool. Input reactant and product partial pressures for accurate results.

Formula:

For a general gas-phase reaction: aA(g) + bB(g) ↔ cC(g) + dD(g)

The Equilibrium Constant (Kp) is calculated as:

Kp = (P_C^c × P_D^d) ÷ (P_A^a × P_B^b)

P_A, P_B, P_C, P_D: Partial pressures of reactants A, B and products C, D at equilibrium.
a, b, c, d: Stoichiometric coefficients for reactants A, B and products C, D in the balanced chemical equation.

Chemistry and Tools

Equilibrium Constant (Kp) Calculator for Partial Pressures

Calculate Equilibrium Constant (Kp)

Reactants (e.g., 2A + 3B)

Products (e.g., 4C + 1D)

Calculation Results

Formula:

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