7:23 PM PIP S (101) Fundamentals_of_Thermal_Fluid_Sciences_5.pdf Pressure cooker FIGURE P2-81 2-82 A glass tube is attached to a water pipe, as shown in Fig. P2-82. If the water pressure at the bottom of the tube is 110 kPa and the local atmospheric pressure is 99 kPa, deter- mine how high the water will rise in the tube, in m. Take the density of water to be 1000 kg/m. P = 99 kPa atm Water FIGURE P2-82 K h = ? Tever in the average air density is 1.20 kg/m. Answer: 714 m 2-85E A water pipe is connected to a double-U manometer as shown in Fig. P2-85E at a location where the local atmo- spheric pressure is 14.2 psia. Determine the absolute pressure at the center of the pipe. A 20 in Water pipe FIGURE P2-85E Oil SG = 0.80 60 in Oil SG= 0.80 30 in 25 in Mercury SG = 13.6 2-86 A gasoline line is connected to a pressure gage through a double-U manometer, as shown in Fig. P2-86 on the next page. If the reading of the pressure gage is 370 kPa, determine the gage pressure of the gasoline line [100] & = 0 all 5 0 B/s A D C