Thermodynamic derivation of the Young-Dupré form equations for the case of two immiscible liquid drops resting on a solid substrate.

In this study a form of Young-Dupré equation has been derived for the case of a drop of a liquid (1) completely encapsulated by another drop of liquid (2) and both are resting on a solid substrate. The two liquids considered here are immiscible homogeneous phases. The derivation is mainly based on the powerful thermodynamics formalism with the help of geometrical considerations.