A 300-lb iron casting, initially at 1050°F, is quenched in a tank filled with 2121 lb of oil, initially at 80°F. The iron casting and oil can bemodeled as incompressible with specific heats 0.10 Btu/lb · °R, and 0.45 Btu/lb · °R, respectively.(a) For the iron casting and oil as the system,determine the final equilibrium temperature, in °F.Ignore heat transfer between the system and its surroundings.Tf =i°F(b) For the iron casting and oil as the system,determine the amount of entropy produced within the tank, in Btu/°R.Ignore heat transfer between the system and its surroundings.O =iBtu/°RTouthoolk ond Medie

Answered: A 300-lb iron casting, initially at…

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

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2. A piston-cylinder assembly with stops (see figure) contains 1.54 kg of water initially occupying a volume of 1.25 m at a pressure of 1 bar (State 1). As the water in the assembly is heated, the pressure and temperature in the system remain constant until the piston contacts the stops. In this position (State 2), the quality, x2, is determined to be 92%. Heat continues to be added to the system at a constant volume until the system reaches a pressure of 1.5 bar (State 3). Determine the following quantities: а. X b. V2 (m2) C. W13 (kJ) d. Qu (kJ) e. Plot the results on a P-v diagram, labelling relevant P, T, and v values.
13
Solve the following problem using the right Thermodynamics properties table.
Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated cylinder from 3.7 bar, 220 0C to a volume of 0.085 m3. If the initial volume occupied was 0.02 m3, calculate the adiabatic index to 1 decimal place. Assume nitrogen to be a perfect gas and take cv = 0.63 k J / k g K
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Carbon dioxide (CO₂) fills a closed, rigid tank fitted with a paddle wheel, initially at 80°F, 50 lb/in², and a volume of 1.6 ft³. The gas is stirred until its temperature is 500°F. During this process heat transfer from the gas to its surroundings occurs in an amount 2.6 Btu. Assume ideal gas behavior, but do not assume constant specific heats. Kinetic and potential energy effects can be ignored. Determine the mass of the carbon dioxide, in lb, and the work, in Btu.
Five kilograms of a two-phase liquid-vapor mixture of water initially at 300\deg C and x1 = 0.5 is heated from the initial state to a saturated vapor state while the volume remains constant. The process is brought about by heat transfer from a thermal reservoir at 380\deg C. The temperature of the water at the location where the heat transfer occurs is 380\deg C.Let To = 300 K, Po = 1 bar, and ignore the effects of motion and gravity.
A 300-lb iron casting, initially at 600°F, is quenched in a tank filled with 2121 lb of oil, initially at 80°F. The iron casting and oil can be modeled as incompressible with specific heats 0.10 Btu/lb. °R, and 0.45 Btu/lb. °R, respectively. (a) For the iron casting and oil as the system,determine the final equilibrium temperature, in °F. Ignore heat transfer between the system and its surroundings. T₁ = i (b) For the iron casting and oil as the system,determine the amount of entropy produced within the tank, in Btu/°R. Ignore heat transfer between the system and its surroundings. J = °F Mi Btu/ºR
A 300-lb iron casting. initially at 600°F, is quenched in a tank filled with 2121 lb of oil, initially at 80°F. The iron casting and oil can be modeled as incompressible with specific heats 0.10 Btu/lb - °R. and 0.45 Btu/lb - °R, respectively. (a) For the iron casting and oil as the system.determine the final equilibrium temperature, in °F. Ignore heat transfer between the system and its surroundings. °F (b) For the iron casting and oil as the system,determine the amount of entropy produced within the tank, in Btu/°R. Ignore heat transfer between the system and its surroundings. Btu/°R
I need the answer quickly
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* Your answer is incorrect. Water contained in a piston-cylinder assembly, initially at 300°F, a quality of 80%, and a volume of 6 ft3, is heated at constant temperature to saturated vapor. If the rate of heat transfer is 0.3 Btu/s, determine the time, in min, for this process of the water to occur. Kinetic and potential energy effects are negligible. At = i 5.217 min

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