Question

Determine the specific weight, density, and specific gravity of a liquid that occupies a volume of 200litres and weighs 178kg. Will the liquid float on the surface of oil of specific gravity (0.8) provides a result in S:I units

Answer 1

Density $\rho=m/V=178/0.2=890\ (kg/m^3)$

Specific weight $\gamma =\rho g=890\cdot9.8=8722\ (N/m^3)$

Specific gravity $SG=\rho_{object}/\rho_{water}=890/1000=0.89$

$0.89>0.8$ - the liquid will not float on the surface of oil.