Young Contact Angle
Calculate the equilibrium contact angle from solid–vapor, solid–liquid, and liquid–vapor interfacial energies using Young's equation. Valid only when the resulting cosine lies between −1 and 1; surface roughness and hysteresis are not modeled.
Description
Calculate the equilibrium contact angle from solid–vapor, solid–liquid, and liquid–vapor interfacial energies using Young's equation. Valid only when the resulting cosine lies between −1 and 1; surface roughness and hysteresis are not modeled.
Young Contact Angle: Calculate the equilibrium contact angle from solid–vapor, solid–liquid, and liquid–vapor interfacial energies using Young's equation. Valid only when the resulting cosine lies between −1 and 1; surface roughness and hysteresis are not modeled.
When to use Young Contact Angle
Use this chemistry calculator to reproduce a named relationship with explicit quantities and units for study, laboratory planning, or an independent numerical check.
- Solid–vapor energy (N/m)
- Required number input.
- Solid–liquid energy (N/m)
- Required number input.
- Liquid–vapor tension (N/m)
- Required number input.
How Young Contact Angle works
Calculate the equilibrium contact angle from solid–vapor, solid–liquid, and liquid–vapor interfacial energies using Young's equation. Valid only when the resulting cosine lies between −1 and 1; surface roughness and hysteresis are not modeled. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.1
- Contact Angle Deg
- The resulting contact angle deg returned as a number.
Limitations and assumptions
- Adsorption, wetting, and colloid models depend on surface preparation, temperature, pore structure, solution chemistry, and the chosen idealized isotherm or interaction model. Fitted parameters should not be extrapolated beyond their measurement range.
- Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.
Alternative or Complementary approaches
Check units and significant figures, compare the result with limiting cases, and use measured or source-specific constants where available. Laboratory, safety, and regulatory decisions require validated methods and appropriate uncertainty analysis.
References
-
Surface science — Wikipedia contributors
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