A 20 ft3 container has two partitions. Partition A, whose volume is 11 ft3, contains six Ibm of air at 85 °F. Partition B, or the other part, is evacuated. The air expands freely to fill the entire container, and comes to rest with a temperature of 9 °F. At this final state, a pressure gauge connected to the ves reads 25 psi and the atmospheric pressure is 14 7 psi Wbat

A 20 ft3 container has two partitions. Partition A, whose volume is 11 ft3, contains six Ibm of air at 85 °F. Partition B, or the other part, is evacuated. The air expands freely to fill the entire container, and comes to rest with a temperature of 9 °F. At this final state, a pressure gauge connected to the ves reads 25 psi and the atmospheric pressure is 14 7 psi Wbat

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

H.W.1/: The water in a tank is pressurized by air, and the pressure is measured by a multifluid manometer as shown in Fig. below. Determine the gage pressure of air in the tank if hl = 0.4 m, h2 = 0.6 m, and h3 = 0.8 m. Take the densities of water, oil, and mercury to be 1000 kg/m³, 850 kg/m³, and 13600 kg/m3, respectively? Oil Air Water IT h2 h3 Mercury
1. Oxygen at 30°C and 300 kPa absolute pressure expands isotherrnally to an absolute pressure of 120 kPa. Determine the final density of the gas. Ans. 1.52 kg/m³ 2. Air is enclosed by a rigid cylinder containing a piston. A pressure gage attached to the cylinder indicates an initial reading of 25 psi. Determine the reading on the gage when the piston has compressed the air to one-third its original volume. Assume the compression process to be isothermal and the local atmospheric pressure to be 14.7 psi. Ans. 104 psig 3. The viscosity of liquids can be measured through the use of a rotating cylinder viscometer of the type illustrated in Fig. P1.3. In this device the outer cylinder is fixed and the inner cylinder is rotated with an angular velocity w. The torque T, required to develop w is measured and the viscosity is calculated from these two measurements. Develop an equation relating u, w, T, e, Ro and Ri. Neglect end effects and assume the velocity distribution in the gap is linear.…
The expansion tank of a household hot-water heating system is open to the atmosphere and is 10 meters above a pressure gauge attached to the furnace. What is the gauge pressure at the furnace, in pascals? In atmospheres? Include given, fbd and solution.
A manometer containing two oils is used to assess the pressure of air in a storage tank. Given the configuration of the oils in the picture, calculate the pressure in the tank. The density of air is negligible to the density of the oils (?oil1 = 1000 ??/m3; ?oil2 = 400 ??/m3 ). The height of oil 1 is 1 ?, and the height of oil 2 is 0.8 ?. The atmospheric pressure is 98 ???. The manometer is ipen to the atmosphere.
A U-tube manometer is used to check the pressure of natural gas entering a furnace. One side of the manometer is connected to the gas inlet line, and the water level in the other side open to atmospheric pressure rises 2.0 in. What is the gage pressure of the natural gas in the inlet line in in. H₂O and in lb/ft² gage? Pgas = i Pgas i in. H₂O gage lb/ft² gage
A car tyre has a gauge pressure of 1.9 bar. Determine it's absolute pressure in mmHg, assuming the atmospheric pressure is 1.013 bar.
The reading of the pressure gauge fitted on a vessel is 25 bar. The atmospheric pressure is 1.03 bar and the value of 'g' is 9.81 m/s2. The absolute pressure in the vessel is
Air undergoes an isobaric process from T1 = 300 degrees Celsius to T2 = 250 degrees Celsius as an ideal gas in a closed system. The air volume reduces in the process. True or False.
The Louisiana Superdome has an interior volume of 125 million ft3, covered by a 440,000 ft² roof. On a particular day, the interior air pressure gave a manometer reading of 19 inches mercury (pHg = 13.6 g/cm³). Local atmospheric pressure is 102 kPa. 1. kg Calculate the mass of the air inside, assuming an average temperature of 20 °C. 2. kN Calculate the net force applied to the roof by the interior/exterior air (do not account for the weight of the roof). Assume the roof is flat.
In the system illustrated below, manometer A reports a vacuum (negative pressure) of 0.30 kgf/cm2 and manometer B reports a pressure of 7.4 psi.Find the value of the difference in level h in cm
A U-tube manometer containing a light oil (specific gravity 0.7) is used to measure the static pressure of air (density 1.2 kg/m³) in a container. If the gauge pressure is 206 N/m², what is the indicated height of oil?
2. If 100 ft of atmospheric air at zero Fahrenheit temperature are compressed to a volume of 1 ftat a temperature of 200-F, what will be the pressure of the air in psi?