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Young's relation 3.1.2 Real Smooth Surfaces and the Young contact angle 3.1.3 The Young– **Dupre equation** and Spreading Coefficient 4 Non-ideal rough solid surfaces 4.1 Wenzel's model 4.2 Cassie–Baxter model 4.2.1 Precursor film 4.2.2 "Petal effect" vs. "lotus effect

equal to half the work of cleavage, W: γ = (1/2)W 11 . If the surfaces are unequal, the Young **Dupré equation** applies: W 12 = γ 1 + γ 2 – γ 12 , where γ 1 and γ 2 are the surface energies of the two new surfaces, and γ 12 is the interfacial tension. This methodology can

passivation or adsorption . Contents 1 Measuring the surface energy of a liquid 1.1 Young's **equation** 2 Measuring the surface energy of a solid 3 Calculating the Surface Energy of a Deformed Solid 4 See also 5 References [ edit ] Measuring the surface energy of

Wave theory of light 2.2 Young's modulus 2.3 Vision and colour theory 2.4 Young–Laplace **equation** 2.5 Young's **equation** and Young– **Dupré equation** 2.6 Medicine 2.7 Languages 2.8 Egyptian hieroglyphs 2.9 Music 3 Selected writings 4 References 5 Further reading 6

melting point depression is inversely proportional to the pore size, as given by the Gibbs–Thomson **equation** . Contents 1 Introduction 2 Gibbs–Thomson **equation** for particles 3 Gibbs–Thomson **equation** for liquids in pores 4 Simplified Gibbs-Thomson **equation** 5 Origins

**wikipedia.org** | 2011/9/9 3:01:34

as γ S L and the liquid-vapor energy (i.e. the surface tension ) as simply γ, we can write an **equation** that must be satisfied in equilibrium (known as the Young **Equation** ): where θ C is the equilibrium contact angle. The Young **equation** assumes a perfectly flat surface, and in many

contains both chemical and electrical components, and charge becomes a significant term in that **equation** . The chemical component is just the natural surface tension of the solid/electrolyte interface with no electric field. The electrical component is the energy stored in the capacitor formed

**wikipedia.org** | 2011/7/1 2:00:43

In physics , the Young–Laplace **equation** is a nonlinear partial differential **equation** that describes the capillary pressure difference sustained across the interface between two static fluids , such as water and air , due to the phenomenon of surface tension or wall tension , although

**wikipedia.org** | 2011/9/27 13:15:19

Surface tension has the dimension of force per unit length , or of energy per unit area . The two are equivalent—but when referring to energy per unit of area, people use the term surface energy —which is a more general term in the sense that it applies also to solids and not just liquids

In physics , the Washburn's **equation** [ 1 ] (also known as Lucas Washburn law, considering that R. Lucas [ 2 ] wrote a similar paper 3 years ahead) describes capillary flow in a bundle of parallels cylindrical tubes; it is extended with some issues also to the imbibition into porous materials

**wikipedia.org** | 2011/7/22 3:28:58