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A mass of 0.2 kg of saturated refrigerant-134a is contained in a piston-cylinder device at 200 kPa. Initially, 75 percent of the mass is in the liquid phase. Now heat is transferred to the refrigerant at constant pressure until the cylinder contains vapor only. Show the process on a P-v diagram with respect to saturation lines. Determine (a) the volume occupied by the refrigerant initially, (b) the work done, and (c) the total heat transfer.
What is the name of the building (if given)? Islamic Development Bank Headquarters. What is the building's address (district and street)? King Khalid Road, Al-Nazlah Al-Yamaniyah. What is the building type?
A high strength steel is developed with a yield stress of 1460 MPa and a critical stress intensity factor of 30MPa(m)^0.5. Calculate the size of the initial flaw that will cause failure in an infinite plate when the load applied is 50% of the load..
What are the structural systems that the building uses? What challenges and opportunities will there be in replicating the structure? What are the challenges and opportunities offered by the site?
A reservoir has a capacity of 2.75 million acre-ft. How many years would this supply a city of 100,000 people if evaporation is neglected. Assume a use rate of 180 gpcd.
The grid Az of a line is 142° 25' 18". If the convergence angle is 1° 05' 34" and the arc to chord correction is 2.1", what is the geodetic Az of the line
The void ratio of a given soil A is twice that of another soil B,while the effective size of particles of soil A is one-third thatof soil B. The height of capillary rise of water in soil A on acertain day is found to be 400 mm. Determine the correspo..
In the first part of the essay discuss, "Do you believe that psychologists serving as trial consultants provide a valuable and worthwhile service in the selection of juries?"Why or why not?
A piece of wire is stretched from length l1 to length l2 (step A), and then from length l2 to length l3 (step B). (i) Write down an expression for the engineering strain associated with step A.
inability and green engineering can be integrated in the four components of materials science and engineering?
Determine the actual detention time observed in the field of two circular settling tanks with depth 3.5 m that was designed to have an overflow rate not exceeding 60 m3/m2-day and a detention time of at least 2 hour.
A gray silty clay (CL) is sampled from a depth of 12.5 feet. The "moist" soil was extruded ffrom a 6-inch high brass liner with an inside diameter of 2.83 inches and weighed 777 grams.
A hot-rolled 7-mm-diameter steel rod is axially loaded at room Temp under a fully reversed cyclic loading. under the rotating beam test, the endurance limit for this steel is 470 MPA, under static loading the ultimate strenght is 1200 MPA.
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