Volume of the spherical drop  making a contact angle  with the solid surface is given as
where  is the radius of the spherical drop. The area of the curved surface of the liquid drop i.e. liquid-vapor interface  is given by
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(5.12) |
Change in free energy per unit volume of the condensed phase of the system is given as
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(5.13a) |
Where,  is the ideal gas constant,  is absolute temperature,  and  are the surface energies before and after the formation of the nucleus respectively. The ratio  is known as super-saturation ratio.
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(5.13b) |
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