Fundamentals Of Engineering Thermodynamics
9th Edition
ISBN: 9781119391388
Author: MORAN, Michael J., SHAPIRO, Howard N., Boettner, Daisie D., Bailey, Margaret B.
Publisher: Wiley,
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Chapter 1, Problem 1.27CU
To determine
The difference between absolute pressure and atmospheric pressure is equal to gauge pressure: the given statement is true or false.
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Q1. The tank in Fig. 1 contains oil of specific gravity 0.75. Determine the reading of
gauge A in KPa.
Air
22.9 cm
304.8 cm
Oil
sp gr 13.57
Fig. 1
Given below are the following absolute pressure readings. Determine the gauge pressure readings in each of the following in kilo-Pascals (kPa). Round-off your answers to the nearest three decimal places. NOTE: 101.325 kPa, 14.696 psi, 2116.224 psf, 760 mm Hg.
1. 1000 mm Hg
1. Pressures up to 3000 bar are measured with a dead-weight gauge. The piston diameter
is 4 mm. What is the approximate mass in kg of the weights required?
2. A gas is confined in a 0.47 m diameter cylinder by a piston, on which rests a weight.
The mass of the piston and weight together is 150 kg. The local acceleration of gravity
is 9.813 m's-2, and atmospheric pressure is 101.57 kPa.
(a) What is the force in newtons exerted on the gas by the atmosphere, the piston,
and the weight, assuming no friction between the piston and cylinder?
(b) What is the pressure of the gas in kPa?
(c) If the gas in the cylinder is heated, it expands, pushing the piston and weight
upward. If the piston and weight are raised 0.83 m, what is the work done by the
gas in kJ? What is the change in potential energy of the piston and weight?
3. Steam at 1400 kPa and 350°C [state 1] enters a turbine through a pipe that is 8 cm in
diameter, at a mass flow rate of 0.1 kg: s-1. The exhaust from the turbine is…
Chapter 1 Solutions
Fundamentals Of Engineering Thermodynamics
Ch. 1 - Prob. 1.2ECh. 1 - Prob. 1.3ECh. 1 - Prob. 1.4ECh. 1 - Prob. 1.5ECh. 1 - Prob. 1.6ECh. 1 - Prob. 1.7ECh. 1 - Prob. 1.8ECh. 1 - Prob. 1.9ECh. 1 - Prob. 1.10ECh. 1 - Prob. 1.11E
Ch. 1 - Prob. 1.12ECh. 1 - Prob. 1.13ECh. 1 - Prob. 1.14ECh. 1 - Prob. 1.1CUCh. 1 - Prob. 1.2CUCh. 1 - Prob. 1.3CUCh. 1 - Prob. 1.4CUCh. 1 - Prob. 1.5CUCh. 1 - Prob. 1.6CUCh. 1 - Prob. 1.7CUCh. 1 - Prob. 1.8CUCh. 1 - Prob. 1.9CUCh. 1 - Prob. 1.10CUCh. 1 - Prob. 1.11CUCh. 1 - Prob. 1.12CUCh. 1 - Prob. 1.13CUCh. 1 - Prob. 1.14CUCh. 1 - Prob. 1.15CUCh. 1 - Prob. 1.16CUCh. 1 - Prob. 1.17CUCh. 1 - Prob. 1.18CUCh. 1 - Prob. 1.19CUCh. 1 - Prob. 1.20CUCh. 1 - Prob. 1.21CUCh. 1 - Prob. 1.22CUCh. 1 - Prob. 1.23CUCh. 1 - Prob. 1.24CUCh. 1 - Prob. 1.25CUCh. 1 - Prob. 1.26CUCh. 1 - Prob. 1.27CUCh. 1 - Prob. 1.28CUCh. 1 - Prob. 1.29CUCh. 1 - Prob. 1.30CUCh. 1 - Prob. 1.31CUCh. 1 - Prob. 1.32CUCh. 1 - Prob. 1.33CUCh. 1 - Prob. 1.34CUCh. 1 - Prob. 1.35CUCh. 1 - Prob. 1.36CUCh. 1 - Prob. 1.37CUCh. 1 - Prob. 1.38CUCh. 1 - Prob. 1.39CUCh. 1 - Prob. 1.40CUCh. 1 - Prob. 1.41CUCh. 1 - Prob. 1.42CUCh. 1 - Prob. 1.43CUCh. 1 - Prob. 1.44CUCh. 1 - Prob. 1.45CUCh. 1 - Prob. 1.46CUCh. 1 - Prob. 1.47CUCh. 1 - Prob. 1.48CUCh. 1 - Prob. 1.49CUCh. 1 - Prob. 1.50CUCh. 1 - Prob. 1.51CUCh. 1 - Prob. 1.52CUCh. 1 - Prob. 1.53CUCh. 1 - Prob. 1.54CUCh. 1 - Prob. 1.55CUCh. 1 - Prob. 1.56CUCh. 1 - Prob. 1.57CUCh. 1 - Prob. 1.58CUCh. 1 - Prob. 1.4PCh. 1 - Prob. 1.5PCh. 1 - Prob. 1.6PCh. 1 - Prob. 1.7PCh. 1 - Prob. 1.8PCh. 1 - Prob. 1.9PCh. 1 - Prob. 1.10PCh. 1 - Prob. 1.11PCh. 1 - Prob. 1.12PCh. 1 - Prob. 1.13PCh. 1 - Prob. 1.14PCh. 1 - Prob. 1.16PCh. 1 - Prob. 1.17PCh. 1 - Prob. 1.18PCh. 1 - Prob. 1.19PCh. 1 - Prob. 1.20PCh. 1 - Prob. 1.21PCh. 1 - Prob. 1.22PCh. 1 - Prob. 1.23PCh. 1 - Prob. 1.24PCh. 1 - Prob. 1.25PCh. 1 - Prob. 1.26PCh. 1 - Prob. 1.27PCh. 1 - Prob. 1.28PCh. 1 - Prob. 1.29PCh. 1 - Prob. 1.30PCh. 1 - Prob. 1.31PCh. 1 - Prob. 1.32PCh. 1 - Prob. 1.33PCh. 1 - Prob. 1.34PCh. 1 - Prob. 1.35PCh. 1 - Prob. 1.36PCh. 1 - Prob. 1.37PCh. 1 - Prob. 1.38PCh. 1 - Prob. 1.39PCh. 1 - Prob. 1.40PCh. 1 - Prob. 1.41PCh. 1 - Prob. 1.42PCh. 1 - Prob. 1.43PCh. 1 - Prob. 1.44PCh. 1 - Prob. 1.45PCh. 1 - Prob. 1.46PCh. 1 - Prob. 1.47PCh. 1 - Prob. 1.48PCh. 1 - Prob. 1.49P
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- Given below are the following gauge pressure readings. Determine the absolute pressure readings in each of the following in kilo-Pascals (kPa). Round-off your answers to the nearest three decimal places. NOTE: 101.325 kPa, 14.696 psi, 2116.224 psf, 760 mm Hg. 1. 101.325 psiarrow_forwardThe right side leg of the pictured manometer is open to the atmosphere with a pressure of 1 atm. The left side leg is connected to a closed gas reservoir. The scale is graduated in cm. If the blue fluid in the manometer is gallium, what is the pressure at the gas/gallium interface in the left hand leg?a. 106.9 kPab. 103 kPac. 600 kPad. 5.7 kPaarrow_forwardAbsolute pressure is the actual existing pressure, independent of the environment, while gauge pressure is the pressure relative to the exterior environment, which is usually the atmosphere (with a pressure of 1 atm). Convert an absolute pressure of 7.25 × 105 N/m2 to gauge pressure, in pounds per square inch. Pg= ?arrow_forward
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- An open tube mercury manometer is used to measure the pressure in an oxygen tank. When the atmospheric pressure is 1040 mbar, what is the absolute pressure (in Pascal) in the tank if the height of the mercury in the open tube is 28 cm higher? (density of mercury = 13.6 X 10° kg/m³) * O 1.41 X10 pa O 2.34 X105 pa O 1.82 X105 pa O 2.12 X105 paarrow_forwardA closed vessel contains air at a pressure of 140 kPag and a temperature of 20°C. Find the final absolute pressure in KPA if the air is heated at a constant volume to 100°C. The atmospheric pressure is 28 in. Hg. a. 298.93 b. 300.93 c. 278.93 d. 288.93arrow_forward(3) The pressure difference between two points as measured with a manometer is gven as P2 P1 pgh The following figure shows a single U-tube manometer for measuring pressure difference between ponts "A" and "E". Air Water The U-tube manometer. By determining the prestre at point "a" through the left leg and then through the right leg, show that the difference in pressure between point "A" PA and "B Ps is approximately given by PA- Pg = g (hz -h, )(Puzo) 21Page |曾目 底 の 10:44 PM 2/8/2021 Y MD 23 24 25 26 22 16 11 A ins prt sc home no + backspace unu lock 80 COarrow_forward
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