Question

If a barrel of oil weighs 1.5 kN, calculate the specific weight, density, and specific gravity of the oil. The barrel weighs 110 N

Answer 1

given,

oil barrel weight = 1.5 k N = 1500 N

weight of the barrel = 110 N

Assuming volume of barrel = 0.159 m³

weight of oil = 1500-110

= 1390 N

`specific\ weight = (weight)/(volume)`

`specific\ weight = (1390)/(0.159)`

= 8742.14 N/m³

`mass = (weight)/(g)`

`mass = (1390)/(9.8)`

= 141.84 kg

`density = (mass)/(volume)`

`density = (141.84)/(0.159)`

= 892.05 kg/m³

`Specific\ gravity = (density\ of\ oil)/(density\ of\ water)`

`Specific\ gravity = (892.05)/(1000)`

= 0.892