Density is defined as the mass of a substance per unit volume.
If a fluid element enclosing a point P has a volume dV and dm , then the density is given by r = lim dV - 0 (dm / dV) = (dm / dV) The unit of density is kg/m3 .
Specific volume is defined as the reciprocal of density that is volume capacity per unit mass of fluid Vs = ( 1 / r) = ( dV / dm ) The unit of sp. Volume is m3/kg .
Specific weight is the weight of the fluid per unit volume.
g = ( weight / volume) = ( m g / v) = r g The unit of specific weight is N/m3.
Specific gravity is the ratio of mass density (or) weight density of the fluid to the mass density (or) weight density of the standard fluid. For liquids, water at 4oc is considered as standard fluid. A liquid has a specific gravity of 1.527.
If a fluid element enclosing a point P has a volume dV and dm , then the density is given by r = lim dV - 0 (dm / dV) = (dm / dV) The unit of density is kg/m3 .
Specific volume is defined as the reciprocal of density that is volume capacity per unit mass of fluid Vs = ( 1 / r) = ( dV / dm ) The unit of sp. Volume is m3/kg .
Specific weight is the weight of the fluid per unit volume.
g = ( weight / volume) = ( m g / v) = r g The unit of specific weight is N/m3.
Specific gravity is the ratio of mass density (or) weight density of the fluid to the mass density (or) weight density of the standard fluid. For liquids, water at 4oc is considered as standard fluid. A liquid has a specific gravity of 1.527.
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