The Young–Laplace equation gives the pressure jump across an interface as , with the sign set by the chosen normal and curvature convention.
The Gibbs--Thomson relation shifts the equilibrium chemical potential or composition at a curved interface by an amount proportional to its mean curvature. Small droplets therefore have a larger equilibrium solubility than flat interfaces.
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The Young–Laplace equation describes the pressure difference across the interface of a curved liquid surface due to surface tension. It is a fundamental equation in fluid mechanics that quantifies how curvature affects the pressure inside and outside a liquid droplet or bubble.