IEVref: 113-03-42 ID: Language: en Status: Standard Term: surface tension Synonym1: Synonym2: Synonym3: Symbol: γσ Definition: at a point of a line on the interface of two fluids or a fluid and a solid, quantity equal to the derivative of the component F of the force, tangent to the surface and perpendicular to the line, with respect to curvilinear abscissa l, thus $\gamma =\text{d}F/\text{d}l$NOTE 1 The surface tension is equal to the work ΔW needed to expand the surface by an area ΔA, divided by ΔA, thus γ = ΔW / ΔA. NOTE 2 The coherent SI unit of surface tension is newton per metre, N/m or, equally, joule per square meter, J/m2. Publication date: 2011-04 Source: Replaces: Internal notes: 2017-06-02: Cleanup - Remove Attached Image 113-03-42en.gif CO remarks: TC/SC remarks: VT remarks: Domain1: Domain2: Domain3: Domain4: Domain5: