Critical Micelle Concentration (CMC)Chemistry
Critical Micelle Concentration (CMC) & Thermodynamics of Micellization Calculator
Calculate Gibbs free energy of micellization (ΔG°mic), surfactant mole fraction at CMC, and thermodynamic spontaneity for nonionic and ionic surfactant systems.
Calculated Result
Gibbs Free Energy of Micellization (ΔG°mic)
0kJ/mol
Calculator Inputs
mm
Quick select:
-
Quick select:
Quick select:
Gibbs Free Energy of Micellization (ΔG°mic)
0kJ/mol
Surfactant Mole Fraction (X_CMC)
0 -
Micellization Spontaneity Driving Force
Micelle ΔG°
0 kJ/mol(0%)
Standard colloid, surface chemistry, and pharmaceutical formulation tool for surfactant self-assembly.
Calculation Methodology
Phase Separation Thermodynamic Model: For non-ionic surfactants: ΔG°mic = R * T * ln(X_CMC). For ionic surfactants: ΔG°mic = (1 + β) * R * T * ln(X_CMC). Where X_CMC ≈ CMC(mol/L) / 55.55, R = 8.314 J/(mol K), T in Kelvin, and β is counterion binding degree.
Frequently Asked Questions
It is the threshold concentration above which monomeric surfactant saturation occurs at the air-water interface, driving surplus monomers to self-assemble into hydrophobic-core spherical aggregates (micelles).
Related Calculators
Recommended tools and calculators tailored to your current calculation
Chemistry
Arrhenius Equation & Activation Energy (Ea) Rate Calculator
Chemistry
Gibbs Free Energy & Reaction Spontaneity Calculator (ΔG = ΔH - TΔS)
Chemistry
Bond Dissociation Energy (BDE) & Reaction Enthalpy Calculator
Chemistry
Equilibrium Constant Kc to Kp Gas Conversion Calculator
Chemistry
Charles's Law Gas Volume & Temperature Calculator (V1/T1 = V2/T2)
Chemistry
Bomb Calorimeter Internal Energy (ΔU) & Enthalpy of Combustion Calculator
Chemistry
Gay-Lussac's Law Gas Pressure & Temperature Calculator (P1/T1 = P2/T2)
Chemistry