EBK FUNDAMENTALS OF THERMODYNAMICS, ENH
9th Edition
ISBN: 9781119321453
Author: Sonntag
Publisher: JOHN WILEY+SONS,INC.-CONSIGNMENT
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Chapter 1, Problem 1.34P
To determine
The force needed to open the valve.
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1. Two pipes A & B caries an oil of specific gravities 0.9 & 1.2 respectively. The center of the pipe A is 75 cm above the pipe B. The height of oil in right limb is 35 cm. Also, the mercury level difference is found in right limb as 60 cm. Find the pressure difference between these two pipes in kPa. Also find the pressure equivalent in water head in mm.
A. The difference of pressure between two pipes (PA-Pa) (Unit is in kPa) =
B. Equivalent to Water head in mm =
: The cylinder shown in Fig. (2), Acytinder=7.012cm², has two pistons mounted, the upper
one, mp1 =100kg, initially resting on the stops. The lower piston (mp2 =0kg) has 2kg water
below it, with a spring (linear) in vacuum connecting the two pistons. The spring force is
zero when the lower piston stands at the bottom, and when the lower piston hits the
stops the volume is 0.3m?. The water, initially at 50kPa, V =0.00206m, is then heated to
saturated vapor. Determine:
(1) the initial temperature (2) the pressure that will lift the upper piston (3) The
condition of steam when the lower piston hits the stops (4) the work done by the water
(at saturated vapor state).
Patm=101.325kPa
Piston 1
stops
Piston 2
H:0
Fig.2
1. What is the mass of the air inside the classroom, which is 15m * 8m * 1.5m? The classroom conditions are 25℃. Find the mass of air inside (kg) at a pressure of 1 bar Compare the weight of the air in the classroom with the weight of a person.
Chapter 1 Solutions
EBK FUNDAMENTALS OF THERMODYNAMICS, ENH
Ch. 1 - Separate the list P,F,V,,T,a,m,L,t, and V into...Ch. 1 - A tray of liquid water is placed in a freezer...Ch. 1 - The overall density of fibers, rock wool...Ch. 1 - Is density a unique measure of mass distribution...Ch. 1 - Water in nature exists in three different phases:...Ch. 1 - What is the approximate mass of 1 L of gasoline?...Ch. 1 - Can you carry 1m3 of liquid water?Ch. 1 - A heavy refrigerator has four height-adjustable...Ch. 1 - A swimming pool has an evenly distributed pressure...Ch. 1 - If something floats in water, what does it say...
Ch. 1 - Two divers swim at a depth of 20 m. One of them...Ch. 1 - An operating room has a positive gage pressure,...Ch. 1 - A water skier does not sink too far down in the...Ch. 1 - What is the lowest temperature in degrees Celsius?...Ch. 1 - How cold can it be on Earth and in empty space?Ch. 1 - A thermometer that indicates the temperature with...Ch. 1 - How can you illustrate the binding energy between...Ch. 1 - Prob. 1.18PCh. 1 - One kilopond (1 kp) is the weight of 1 kg in the...Ch. 1 - A stainless steel storage tank contains 5kg of...Ch. 1 - A steel cylinder of mass 4kg contains 4L of water...Ch. 1 - The Rover Explorer has a mass of 185Kg , how much...Ch. 1 - Prob. 1.23PCh. 1 - A 1700kg car moving at 80km/h is decelerated at a...Ch. 1 - The elevator in a hotel has a mass of 750kg , and...Ch. 1 - One of the people in the previous problem weighs...Ch. 1 - Prob. 1.27PCh. 1 - A 1m3 container is filled with 400kg of granite...Ch. 1 - A power plant that separates carbon dioxide from...Ch. 1 - A 5m3 container is filled with 900kg of granite...Ch. 1 - Prob. 1.31PCh. 1 - Prob. 1.32PCh. 1 - A 5000kg elephant has a cross-sectional area of...Ch. 1 - Prob. 1.34PCh. 1 - Prob. 1.35PCh. 1 - A hydraulic lift has a maximum fluid pressure of...Ch. 1 - Prob. 1.37PCh. 1 - Ahydraulic cylinder has a 125mm diameter piston...Ch. 1 - A 75kg human total footprint is 0.05m2 when the...Ch. 1 - Prob. 1.40PCh. 1 - Prob. 1.41PCh. 1 - Prob. 1.42PCh. 1 - Prob. 1.43PCh. 1 - An underwater buoy is anchored at the seabed with...Ch. 1 - A floating oil rig is anchored in the seabed with...Ch. 1 - At the beach, atmospheric pressure is 1025 mbar....Ch. 1 - Prob. 1.47PCh. 1 - Prob. 1.48PCh. 1 - A piston mp=5kg , is fitted in a cylinder. A=15cm2...Ch. 1 - A container ship is 240m long and 22m wide. Assume...Ch. 1 - A probe is lowered 16m into a lake. Find the...Ch. 1 - A person, 75kg , wants to fly (hoover) on a 2kg...Ch. 1 - The density of atmospheric air is about 1.15kg/m3...Ch. 1 - Prob. 1.54PCh. 1 - A barometer to measure absolute pressure shows a...Ch. 1 - A differential pressure gauge mounted on a vessel...Ch. 1 - What pressure difference a 100-m column of...Ch. 1 - A barometer measures 760mmHg at street level and...Ch. 1 - Prob. 1.59PCh. 1 - An exploration submarine should be able to descend...Ch. 1 - The absolute pressure in a tank is 115kPa and the...Ch. 1 - An absolute pressure gauge attached to a steel...Ch. 1 - Prob. 1.63PCh. 1 - The difference in height between the columns of a...Ch. 1 - Prob. 1.65PCh. 1 - Prob. 1.66PCh. 1 - Prob. 1.67PCh. 1 - A 0.2m3 piece of softwood is lifted upto the top...Ch. 1 - A car of mass 1775kg travels with a velocity of...Ch. 1 - What is temperature of 5C in degrees Kelvin?Ch. 1 - Prob. 1.71PCh. 1 - A mercury thermometer measures temperature by...Ch. 1 - The density of liquid water is =1008T/2(kg/m3)...Ch. 1 - Prob. 1.74PCh. 1 - Prob. 1.75PCh. 1 - Prob. 1.76PCh. 1 - Prob. 1.77PCh. 1 - Prob. 1.78PCh. 1 - A mass of 2lbm has an acceleration of 5ft/s2 ....Ch. 1 - How much mass is in 1 gal of gasoline? In helium...Ch. 1 - Can you easily carry a 16m bar of solid gold?Ch. 1 - What is the temperature of 5F in degrees Rankine?Ch. 1 - What is the lowest possible temperature in degrees...Ch. 1 - What is the relative magnitude of degree Rankine...Ch. 1 - Prob. 1.85EPCh. 1 - Prob. 1.86EPCh. 1 - The Rover Explorer has a mass of 410Ibm , how much...Ch. 1 - A 2500Ibm car moving at 25mi/h is accelerated at a...Ch. 1 - An escalator brines four people with a total mass...Ch. 1 - A car of mass 4000Ibm travels with a velocity of...Ch. 1 - Prob. 1.91EPCh. 1 - A power plant that separates carbon dioxide from...Ch. 1 - Prob. 1.93EPCh. 1 - A laboratory room keeps a vacuum of oil 1in. of...Ch. 1 - A person, 175Ibm , wants to fly (hoover) on a 4lbm...Ch. 1 - A floating oil rig is anchored in the seabed with...Ch. 1 - A container ship is 790ft long and 72ft wide....Ch. 1 - A manometer shows a pressure difference of 3.5in....Ch. 1 - What pressure difference does a 300-ft column of...Ch. 1 - Prob. 1.100EPCh. 1 - Prob. 1.101EPCh. 1 - The main waterline into a tall building has a...Ch. 1 - A piston, mp=10lbm , is fitted in a cylinder,...Ch. 1 - The human comfort zone is between 18 and 24C ....Ch. 1 - Prob. 1.105EP
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- Kindly answer with complete solution please. Thank youarrow_forward1. What is the pressure acting on the water at a depth of 1m at 4°C? What is the pressure acting on the water at a depth of 3ft at 32°F? 2. 3. An Aquarium has a Volume of 75000 in 3 , width of 60 inch, length of 50 inch and with a density of 1030 Kg/m3 . Find the hydrostatic Pressure. A water tank for a large industrial space is planned to be placed underground. In designing a level indicator, pressure will be measured at two depths and two locations shown in schematic below. Determine the pressure below at these points. The Pressure measurement devices is 2 meter long. 4. |1.5m 2.5m 6marrow_forward1. Nitrogen at 200 psig is used to fill tank of 120 in³. The filling process is very slow and the contents of the tank attain 73°F. Find the mass of nitrogen, in Ib, inside the tank.arrow_forward
- Air contained in a piston-cylinder system undergoes a polytropic process. Pv1.3 = constant P1 = 100 kPa pressure and T1 = 220C temperature to P2 = 500 kPa pressure is compressed. Calculate the specific volume and temperature at the end of the process.arrow_forwardI don't know whether it's gauge or absolute. Can we use the pressure as it's? Or any conversion required?arrow_forwardB4arrow_forward
- 4. You are designing a U-manometer to measure the differential pressure due to the flow of air. The typical pressure difference is 30 Pa. You have three liquids available, an oil with a density of 550 kg m-³, water which has a density of 1000 kg m-3 and mercury which has a density of 13,500 kg m-3. Which liquid would be most suitable? Justify your answer.arrow_forward15 A closed rectangular tank full of water is 3m long, 2m wide and 2m deep. The pressure at the top of water is raised to 98.1 Kpa. If now the tank is accelerated horizontally along its length at 6m/s, find the forces on the front and rear ends of the tank. Check your results by Newton's law too.arrow_forwardA 20,000 gallon reactor at atmospheric pressure and a temperature of 120 degrees F is heated to a temperature of 810 degrees F. What would the pressure in the reactor bearrow_forward
- Question 8 pls. Complete soln and unitarrow_forward1. Consider the following diagram. The fluid flowing in the pipe is oil (SG = 0.830). The fluid in the manometer is water (SG = 1.00). Water, pw = 1000 kg/m³ 7 cm Oil, p = 830 kg/m³ a. Determine P₂ - P₁ in kPa. b. Determine the direction of flow. (Left to right, or right to left). Explain why this is the case. c. The height of oil between the manometer and the pipe is unknown. Explain how you can still solve the problem without knowing this height. Would this height ever matter? Hint: consider practical issues of design. Could the height be 0 cm? Could it be 1000 cm?arrow_forwardOn a piston of 30cm diameter force = 3000N is uniformly applied Find pressure on the piston?arrow_forward
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