i need the answer quickly 3-7 A vacuum gage connected to a chamber reads 24 kPaat a location where the atmospheric pressure is 92 kPa.Determine the absolute pressure in the chamber.3-7Solutionabsolute pressure in the chamber is to be determined.The pressure in a vacuum chamber is measured by a vacuum gage. The24 kPaPasAnalysisThe absolute pressure in the chamber is determined fromPaPan- P -92-24- 68 kPaP 92 kPaĐiscussion We must remember that "vacuum pressure" is the negative of gage pressure - hence the negative sign.3-9The water in a tank is pressurized by air, and the pres-sure is measured by a multifluid manometer as shown in Fig.P3-9. Determine the gage pressure of air in the tank if h,= 0.2 m, h, = 0.3 m, and h, = 0,46 m. Take the densities ofwater, oil, and mercury to be 1000 kg/m, 850 kg/m, and13,600 kg/m', respectively.- OilAIRWATERMercuryFIGURE P3-93-9SolutionThe pressure in a pressurized water tank is measured by a multi-fluid manometer. The gage pressure of airin the tank is to be determined.Assumptions The air pressure in the tank is uniform (i.e., its variation with elevation is negligible due to its low density).and thus we can determine the pressure at the air-water interface.PropertiesThe densities of mercury, water, and oil are given to be 13,600, 1000, and 850 kgim', respectively.Analysisgo down) or subtracting (as we go up) the pgh terms until we reach point 2, and setting the result equal to Pa since thetube is open to the atmosphere givesStarting with the pressure at point I at the air-water interface, and moving akong the tube by adding (as weP+ Pa sh + Paish, - Pamay gh, = PaAirSolving for P.P- Pan Pean h, -Pagh, + Pan gh,or,-P.Noting that P= P,- Pa and substituting.WaterRoy = (9.81 mis (13,600 kp'm j(0.46 m) - (1000 kgim x0.2 m)INIkPa- (850kgim'x0.3 mIkg-m's A1000 Nim-56.9 kPaDiscussion Note that jumping horizontally from one tube to the next and realizing that pressure remains the same in thesame fluid simplifies the analysis greatly.3-10 Determine the atmospheric pressure at a locationwhere the barometric reading is 750 mmHg. Take the densityof mercury to be 13.600 kg/m.ーミーーミー

Ques 3-10) Given Data : Barometric Reading = 750mm Hg Density of mercury = 13600 kg/m^3

Answered: 3-10 Determine the atmospheric pressure…

3-10 Determine the atmospheric pressure at a location where the barometric reading is 750 mmHg. Take the density of mercury to be 13.600 kg/m.

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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