Homework Answers
Here we use steady flow energy equation in question 5th
and we find the stagnation temperature in 6th question
Add Answer to:
please solve the two
Remaining Time: 1 hour, 14 minutes, 19 seconds. Question Completion Status: QUESTIONS...
Gas enters an adiabatic turbine with enthalpy 3456 kJ/kg and velocity 100 m/s. It leaves the...
Gas enters an adiabatic turbine with enthalpy 3456 kJ/kg and velocity 100 m/s. It leaves the turbine with enthalpy 2675 kJ/kg and velocity 200 m/s. Had the flow been isentropic, the enthalpy would be 2315 k./kg at exit. Assume (V2s-V2). Determine the following: QUESTION 2 Total enthalpy at inlet in kJ/kg Enthalpy at exit in kJ/kg A 2392 B. 2695 C. 2461 D. 2335 Total isentropic enthalpy at exit in kJ/kg Total-to-total efficiency (%) The work done (in kJ/kg) E766...
paq Remaining Time: 1 hour, 19 minutes, 41 seconds. Question Completion Status: The familiar figure below...
paq
Remaining Time: 1 hour, 19 minutes, 41 seconds. Question Completion Status: The familiar figure below shows a reservoir being aspirated by a venturi device. Given that p = 998 kg/m2 and that D1 is 2 cm and D2 is 6.3 cm, if the velocity at the throat, V4 is 9 m/s, determine the largest possible height, n, for which water can actually be drawn up from the reservoir in units of m. Do not include units in your answer....
1. Water enters the constant 130-mm inside-diameter tubes of a boiler at 7 MPa and 65°C...
1. Water enters the constant 130-mm inside-diameter tubes of a boiler at 7 MPa and 65°C and leaves the tubes at 6 MPa and 450°C with a velocity of 80 m/s. Calculate the velocity of the water at the tube inlet and the inlet volume flow rate. [5-14] 2. Air enters a nozzle steadily at 50 psia, 140°F, and 150 ft/s and leaves at 14.7 psia and 900 ft/s. The heat loss from the nozzle is estimated to be 6.5...
Remaining Time: 1 hour, 26 minutes, 11 seconds. Question Completion Status: QUESTION 14 Please use the...
Remaining Time: 1 hour, 26 minutes, 11 seconds. Question Completion Status: QUESTION 14 Please use the following question to answer questions 14-20: On January 1, 2010, P Company purchased an 80% interest in s Company for $900,000. At that time, s Company had capital stock of $600,000 and retained earnings of $100,000. Differences between the fair value and the book value of the identifiable assets of Salem Company were as follows: Fair Value in Excess of Book Value Equipment Land...
I need your help solving this thermodynamics problem please: Question Completion Status: QUESTION 1 20 points...
I
need your help solving this thermodynamics problem please:
Question Completion Status: QUESTION 1 20 points Save Ans The heat-pump system shown is designed to provide water-heating and space-cooling. The system includes a heat exchanger to subcool the R134a refrigerant at the outlet of the water heater while heating the refrigerant at the outlet of the evaporator. Given the following data, determine the enthalpy at each station, 1 through 6, using the R134a property tables (click here). Type your answers...
Homework 2 Problem 1: A piston-cylinder device initially contains 0.35-kg steam at 3.5 MPa, superheated by...
Homework 2 Problem 1: A piston-cylinder device initially contains 0.35-kg steam at 3.5 MPa, superheated by 7.4 C. Now the stream loses heat to the surroundings and the piston moves down, hitting a set of stops at which point the cylinder contains saturated liquid water. The cooling continues until the cylinder contains water at 200C. Determine (a) the final pressure and the quality (if mixture), (b) the boundary work, (c) the amount of heat transfer when the piston first hits...
please Help me!! Remaining Time: 3 hours, 11 minutes, 53 seconds. Question Completion Status: QUESTION 1...
please Help me!!
Remaining Time: 3 hours, 11 minutes, 53 seconds. Question Completion Status: QUESTION 1 The following information is for Bright Eyes Auto Supplies: Bright Eyes Auto Supplies Balance Sheet December 31, 2015 $ 40,000 80,000 100,000 140,000 180,000 250.000 Accounts Payable Salaries and Wages Payable Mortgage Payable Total Liabilities Cash Prepaid Insurance Accounts Receivable Inventory Land Held for Investment Land Buildings $200,000 Less Accumulated Depreciation (60.000 Trademark Total Assets $ 130,000 50,000 150.000 330,000 Common Sock Retained Earnings...
Gas enters an adiabatic turbine with enthalpy 3456 kJ/kg and velocity 100 m/s. It leaves the turbine with enthalpy 2675 kJ/kg and velocity 200 m/s. Had the flow been isentropic, the enthalpy would be 2315 k./kg at exit. Assume (V2s-V2). Determine the following: QUESTION 2 Total enthalpy at inlet in kJ/kg Enthalpy at exit in kJ/kg A 2392 B. 2695 C. 2461 D. 2335 Total isentropic enthalpy at exit in kJ/kg Total-to-total efficiency (%) The work done (in kJ/kg) E766...
paq
Remaining Time: 1 hour, 19 minutes, 41 seconds. Question Completion Status: The familiar figure below shows a reservoir being aspirated by a venturi device. Given that p = 998 kg/m2 and that D1 is 2 cm and D2 is 6.3 cm, if the velocity at the throat, V4 is 9 m/s, determine the largest possible height, n, for which water can actually be drawn up from the reservoir in units of m. Do not include units in your answer....
1. Water enters the constant 130-mm inside-diameter tubes of a boiler at 7 MPa and 65°C and leaves the tubes at 6 MPa and 450°C with a velocity of 80 m/s. Calculate the velocity of the water at the tube inlet and the inlet volume flow rate. [5-14] 2. Air enters a nozzle steadily at 50 psia, 140°F, and 150 ft/s and leaves at 14.7 psia and 900 ft/s. The heat loss from the nozzle is estimated to be 6.5...
Remaining Time: 1 hour, 26 minutes, 11 seconds. Question Completion Status: QUESTION 14 Please use the following question to answer questions 14-20: On January 1, 2010, P Company purchased an 80% interest in s Company for $900,000. At that time, s Company had capital stock of $600,000 and retained earnings of $100,000. Differences between the fair value and the book value of the identifiable assets of Salem Company were as follows: Fair Value in Excess of Book Value Equipment Land...
I
need your help solving this thermodynamics problem please:
Question Completion Status: QUESTION 1 20 points Save Ans The heat-pump system shown is designed to provide water-heating and space-cooling. The system includes a heat exchanger to subcool the R134a refrigerant at the outlet of the water heater while heating the refrigerant at the outlet of the evaporator. Given the following data, determine the enthalpy at each station, 1 through 6, using the R134a property tables (click here). Type your answers...
Homework 2 Problem 1: A piston-cylinder device initially contains 0.35-kg steam at 3.5 MPa, superheated by 7.4 C. Now the stream loses heat to the surroundings and the piston moves down, hitting a set of stops at which point the cylinder contains saturated liquid water. The cooling continues until the cylinder contains water at 200C. Determine (a) the final pressure and the quality (if mixture), (b) the boundary work, (c) the amount of heat transfer when the piston first hits...
please Help me!!
Remaining Time: 3 hours, 11 minutes, 53 seconds. Question Completion Status: QUESTION 1 The following information is for Bright Eyes Auto Supplies: Bright Eyes Auto Supplies Balance Sheet December 31, 2015 $ 40,000 80,000 100,000 140,000 180,000 250.000 Accounts Payable Salaries and Wages Payable Mortgage Payable Total Liabilities Cash Prepaid Insurance Accounts Receivable Inventory Land Held for Investment Land Buildings $200,000 Less Accumulated Depreciation (60.000 Trademark Total Assets $ 130,000 50,000 150.000 330,000 Common Sock Retained Earnings...
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