define: a)vapour pressure b)surface tension c) viscosity
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a) VAPOUR PRESSURE=The pressure of a vapour in contact with its liquid or solid form.
b) SURFACE TENSION=The tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.
c)VISCOSITY=It is defined as a liquid's resistance to flow.
b) SURFACE TENSION=The tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.
c)VISCOSITY=It is defined as a liquid's resistance to flow.
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It has no component perpendicular to the horizontal surface. As a result, there is no pressure difference between the liquid side and the vapour side. ... Thus, there is always an excess of pressure on the concave side of a curved liquid surface over the pressure on its convex side due to surface tension.
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