A bag used for intravenous infusion (IV bag) contains a fluid with a density of
ID: 2241431 • Letter: A
Question
A bag used for intravenous infusion (IV bag) contains a fluid with a density of 1.06 g/cm^3. The volume occupied by the 56 g of the fluid is 5.28^-5 m^3.
1. What is the gauge pressure in mm Hg (torr) in the tubing attached to the IV bag at a position 40 cm below the top of the bag: This I calculated to be 31.2 mm Hg and I was told this was correct... So all I need is the solution for Question 2: **
2. Suppose the tubing 40 cm below the top of the bag has a circular opening of diameter 2 mm. Assuming the fluid drips through the opening under the influence of the gauge pressure you found (Question 1) what is the net force on the exiting fluid (in Newtons)?
Explanation / Answer
Force=pressure x area =(31.2 mm Hg) x (pi x r^2)=31.2x133.32 Pa x(pi X10^(-6)=0.013 N
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