what are the density, specific weight and weight of one litre of petrol of specific gravity = 0.7

Detailed Solution:

density = specific gravity x density of water = 0.7x 1000 = 700kg/cum specific weight = 9.81 x density = 9.81 x 700 = 6867N/cum weight = volume of liquid x specific weight = 6867 x .001 =6.867N