Interfacial Tension in Capillarity and Surface Forces in Liquids (Curved Surfaces) Formulas

Interfacial Tension is the force of attraction between the molecules at the interface of two fluids. And is denoted by σ_i. Interfacial Tension is usually measured using the Millinewton Meter for Moment of Force. Note that the value of Interfacial Tension is always positive.

Formulas to find Interfacial Tension in Capillarity and Surface Forces in Liquids (Curved Surfaces)

fxInterfacial Tension by Laplace EquationGo

List of variables in Capillarity and Surface Forces in Liquids (Curved Surfaces) formulas

fx Laplace Pressure Go

fx Radius of Curvature at Section 1 Go

fx Radius of Curvature at Section 2 Go

FAQ

What is the Interfacial Tension?

Interfacial Tension is the force of attraction between the molecules at the interface of two fluids. Interfacial Tension is usually measured using the Millinewton Meter for Moment of Force. Note that the value of Interfacial Tension is always positive.

Can the Interfacial Tension be negative?

No, the Interfacial Tension, measured in Moment of Force cannot be negative.

What unit is used to measure Interfacial Tension?

Interfacial Tension is usually measured using the Millinewton Meter[mN*m] for Moment of Force. Newton Meter[mN*m], Kilonewton Meter[mN*m], Micronewton Meter[mN*m] are the few other units in which Interfacial Tension can be measured.

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