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2) A hospital has an oxygen tank with volume of 15 ft?. Oxygen in the tank...
Five kg of oxygen (O2), initially at 430C, fills a closed, rigid tank. Heat transfer from...
Five kg of oxygen (O2), initially at 430C, fills a closed, rigid tank. Heat transfer from the oxygen occurs at the rate 425 w for 10 minutes. Assuming the ideal gas model with k = 1.350 for the oxygen, determine its final temperature, in °C.
A 17-ft3 rigid tank initially contains saturated refrigerant-134a vapor at 160 psia. As a result of...
A 17-ft3 rigid tank initially contains saturated refrigerant-134a vapor at 160 psia. As a result of heat transfer from the refrigerant, the pressure drops to 50 psia. a.) Determine the final temperature. Use data from refrigerant tables. (Please provide an answer before moving on to the next part.) b.) Determine the amount of refrigerant that has condensed.(lbm) (Please provide an answer before moving on to the next part.) c.) Determine the heat transfer. (Btu)
A fluid of constant density (p) at 40 °F (T) is flowing into an initially empty cylindrical tank of radius 10 ft. The cy...
A fluid of constant density (p) at 40 °F (T) is flowing into an initially empty cylindrical tank of radius 10 ft. The cylindrical vešsel is jacketed and heated with saturated steam (T) at 212 °F.The steam jacket does not cover either the top or bottom of the tank. The heat capacity of liquid (Cp liquid is near to that of water. The vessel is well stirred and the heat resistance of the jacket is negligible as are the heat...
available ur tank V=0.2 m reversible, adiabatic compressor R22 Thank = -20°C Vii = 0.05 m...
available ur tank V=0.2 m reversible, adiabatic compressor R22 Thank = -20°C Vii = 0.05 m I Wc Tomo = -10°C m=0.1 kg/s for t = 10 min Pcout = 18 bar Problem sketch A tank with volume V = 0.2 m2 contains refrigerant R22 at Ttank = -20°C, as shown in the problem sketch. Initially the tank contains V1,1 = 0.05 m2 of liquid R22 and the rest of the tank contains vapor R22. A reversible, adiabatic compressor operating...
A vertical piston-cylinder contains 1.5 lbm of air. The piston has a mass of 6 Ibm...
A vertical piston-cylinder contains 1.5 lbm of air. The piston has a mass of 6 Ibm and a face area of 10 in2. The air initially occupies a volume of 30.6 in3 and has a specific internal energy of 225 BTU/lbm. The atmosphere exerts a pressure of 1 atm on the top of the piston. Heat transfer occurs slowly during the process between the air in the piston and the surroundings, and the volume of the air decreases to 15.0...
Professor Modyn owns another piston-cylinder device, which initially (State 1) contains 0.236 m3 of saturated water...
Professor Modyn owns another piston-cylinder device, which initially (State 1) contains 0.236 m3 of saturated water vapor at 400.0 kPa. Heat is now slowly transferred to the steam until the volume doubles. Consider the expansion a two step process. First, constant volume heating occurs until the pressure reaches 500.0 kPa (State 2). Finally, a constant pressure expansion occurs resulting in the doubling of the initial volume (State 3) Note: The IUPAC sign convention for work is used. Work into the...
1.) The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the...
1.) The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the final temperature if 305J of heat is added to 41.7 g of this metal, initially at 20.0 ∘C? 2.) When 1723 J of heat energy is added to 42.3 g of hexane, C6H14, the temperature increases by 18.0 ∘C. Calculate the molar heat capacity of C6H14 3.) Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are...
Thermodynamics one pls clear hand writing thanks (i) Define pure substance and comprehensively describe the phase...
Thermodynamics one
pls clear hand writing
thanks
(i) Define pure substance and comprehensively describe the phase changes of a pure substance considering water as an example. Use diagrams to illustrate your understanding of this point.. (1 mark) (ii) The variations of properties during phase-change processes are best studied and understood with the help of property diagrams including the T-v, P-v, and P-T diagrams for pure substances. Taking water as an example, comprehensively sketch and discuss how these tables (1 mark)...
4. A piston/cylinder contains pure oxygen at ambient conditions 20°C, 100 kPa. The piston is moved...
4. A piston/cylinder contains pure oxygen at ambient conditions 20°C, 100 kPa. The piston is moved to a volume that is seven times smaller than the initial volume in a polytropic process with exponent n = 1.25. Find the final pressure and temperature, the specific work, and the specific heat transfer. Use table A.8 to find the internal energy at each state. Plot the process in a P – v diagram. 300 TABLE A.8 Ideal Gas Properties of Various Substances,...
Hello, could you help me with it . 55. A flowmeter has a completely closed needle...
Hello,
could you help me with it .
55. A flowmeter has a completely closed needle valve, and the ball jumps then retums to zero when the flowmeter is plugged into a gas source. Which of the following is correct? I aBourdon gauge is being used II it is a Thorpe tube flowmeter III. it is a back-pressure compensated flowmeter IV. the needle valve is malfunctioning A B. C. D. I & IV II & III I,II & III II,...
Five kg of oxygen (O2), initially at 430C, fills a closed, rigid tank. Heat transfer from the oxygen occurs at the rate 425 w for 10 minutes. Assuming the ideal gas model with k = 1.350 for the oxygen, determine its final temperature, in °C.
available ur tank V=0.2 m reversible, adiabatic compressor R22 Thank = -20°C Vii = 0.05 m I Wc Tomo = -10°C m=0.1 kg/s for t = 10 min Pcout = 18 bar Problem sketch A tank with volume V = 0.2 m2 contains refrigerant R22 at Ttank = -20°C, as shown in the problem sketch. Initially the tank contains V1,1 = 0.05 m2 of liquid R22 and the rest of the tank contains vapor R22. A reversible, adiabatic compressor operating...
A vertical piston-cylinder contains 1.5 lbm of air. The piston has a mass of 6 Ibm and a face area of 10 in2. The air initially occupies a volume of 30.6 in3 and has a specific internal energy of 225 BTU/lbm. The atmosphere exerts a pressure of 1 atm on the top of the piston. Heat transfer occurs slowly during the process between the air in the piston and the surroundings, and the volume of the air decreases to 15.0...
Professor Modyn owns another piston-cylinder device, which initially (State 1) contains 0.236 m3 of saturated water vapor at 400.0 kPa. Heat is now slowly transferred to the steam until the volume doubles. Consider the expansion a two step process. First, constant volume heating occurs until the pressure reaches 500.0 kPa (State 2). Finally, a constant pressure expansion occurs resulting in the doubling of the initial volume (State 3) Note: The IUPAC sign convention for work is used. Work into the...
Thermodynamics one
pls clear hand writing
thanks
(i) Define pure substance and comprehensively describe the phase changes of a pure substance considering water as an example. Use diagrams to illustrate your understanding of this point.. (1 mark) (ii) The variations of properties during phase-change processes are best studied and understood with the help of property diagrams including the T-v, P-v, and P-T diagrams for pure substances. Taking water as an example, comprehensively sketch and discuss how these tables (1 mark)...
4. A piston/cylinder contains pure oxygen at ambient conditions 20°C, 100 kPa. The piston is moved to a volume that is seven times smaller than the initial volume in a polytropic process with exponent n = 1.25. Find the final pressure and temperature, the specific work, and the specific heat transfer. Use table A.8 to find the internal energy at each state. Plot the process in a P – v diagram. 300 TABLE A.8 Ideal Gas Properties of Various Substances,...
Hello,
could you help me with it .
55. A flowmeter has a completely closed needle valve, and the ball jumps then retums to zero when the flowmeter is plugged into a gas source. Which of the following is correct? I aBourdon gauge is being used II it is a Thorpe tube flowmeter III. it is a back-pressure compensated flowmeter IV. the needle valve is malfunctioning A B. C. D. I & IV II & III I,II & III II,...
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