Surface Tension Calculator

Calculate Liquid Surface Properties

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Capillary Rise Method Calculator

Calculate surface tension using the capillary rise method.

Surface Tension: - N/m

Drop Weight Method Calculator

Calculate surface tension using the drop weight method.

Surface Tension: - N/m

Du Noüy Ring Method Calculator

Calculate surface tension using the du Noüy ring method.

Surface Tension: - N/m

Understanding Surface Tension

What is Surface Tension?

Key concepts of surface tension:

  • Cohesive forces between molecules
  • Energy per unit area
  • Temperature dependent
  • Liquid-specific property

Measurement Methods

Common experimental techniques:

  • Capillary rise method
  • Drop weight method
  • Du Noüy ring method
  • Wilhelmy plate method

Influencing Factors

Surface tension depends on:

  • Temperature
  • Impurities
  • Molecular structure
  • Environmental conditions

Applications

Surface tension is important for:

  • Wetting phenomena
  • Detergent action
  • Biological processes
  • Industrial processes
  • Materials science

Essential Surface Tension Formulas

Capillary Rise Method

γ = ρgrh/(2cos θ)

Where h is rise height, r is radius

Drop Weight Method

γ = mg/(2πrf)

Where f is correction factor

Du Noüy Ring Method

γ = F/(4πR)

Where F is maximum force