Question

The drawing shows an intravenous feeding. With the distance shown, nutrient solution (ρ = 1060 kg/m3) can just barely enter the blood in the vein. What is the gauge pressure of the venous blood? Express your answer in millimeters of mercury.

Answer 1

The density of the nutrient solution ρ = 1060kg/m^3

the height difference h = 0.610m

therefore the gauge pressure of the venous blood

      P = ρgh

         = (1060)(9.8)(0.61)

          = 6336.68 Pa

          =( 6.336*10^3 Pa)(7.50*10^-3 mm og Hg /Pa)

          = 47.5mm of Hg