bar is produced from water at (12263kJ) ive kg of eam at pressure of the amount of heat supplied if the steam is 0.9 dry. 7-One kg of water at 47.8°C is heated under constant pressure of 13.7bar until it is converted into steam with 111°C degree of superheated. Determine the quantity of heat supplied during superheating and the total heat. (268kJ, 2852kJ) etermine

bar is produced from water at (12263kJ) ive kg of eam at pressure of the amount of heat supplied if the steam is 0.9 dry. 7-One kg of water at 47.8°C is heated under constant pressure of 13.7bar until it is converted into steam with 111°C degree of superheated. Determine the quantity of heat supplied during superheating and the total heat. (268kJ, 2852kJ) etermine

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

See similar textbooks

Similar questions

A piston-cylinder device initially contains 3 kg of Refrigerant-134a at 10°C and 600 kPa. At this state, a linear spring (F~x) is touching the piston but exerts no force on it. Heat is now slowly transferred to the refrigerant, causing the pressure rise to 1000 kPa with a volume of 0.03 m2 respectively. ( Required: Determine the following: a) The phases of refrigerant at the initial and final states. b) The final temperature. c) The work in the process. d) Show the process on a P-v diagram with respect to saturation lines
4-31E A 20 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. Show the process on a P-v diagram with respect to saturation lines, and determine (a) the final temperature, (b) the amount of refrigerant that has condensed, and (c) the heat transfer.
Please only answer number TWO.
Answer it correctly please. Explain . I will rate accordingly with multiple votes.
Agas filled in a piston-cylinder arrangement as shown in Figure 1 has a volume of 0.09 m at its initial equilibrium state. The gas is slowly heated through the bottom of the cylinder that allowed for the gas to expand at constant- pressure of 2068 kPa to a volume of 1.24 m. The change in internal energy of the gas is 0.21 kl. Ignoring the friction between the piston and the cylinder and assuming the atmospheric pressure any value from 90 to 110 kPa, (a) Calculate the mass of the piston if the area of the piston is 0.055 m? (b) For the gas as a system, evaluate work and heat transfer, each in k (c) For the piston as a system, evaluate work and change in potential energy, each in kJ Piston- Gas Figure 1: piston-cylinder arrangement
one kg of water at 47.8°C is heated unde Constant pressure at 13.7 bar until it is Converted into Staam with 111 of Super-heated. Determine the quantety of heat Supplied during Superheating and the total heat .
If a certain gas has Cp of 1.005 kJ/kg-K and Cv of 0.678 kJ/kg-K, determine the value of k, T2, T3,T4, and thermal efficiency of the gas considering the given information below A gas is primarily at a pressure of 101.325 kPa and a temperature of 77˚C go through the subsequent cycle: For process 1-2 it undergoes an adiabatic compression through compression ratio 5:1; for the process 2-3, it undertakes a heating at constant volume through a pressure ratio 2:1; for process 3-4, it commences constant pressure expansion to initial pressure; and for the last process, which is the process 4-1, it takes a constant pressure cooling to initial volume.
one kg of water at 47.8°C is heated unde Constant pressure at 13.7 bar until it is Converted into Staam with 111 of Super-heated. Determine the quantety of heat Supplied during Superheating and the total heat .
4
Can you answer this four questions? Thank you... Chapter 2 1. A piston-cylinder containing steam at 700 kPa and 250°C undergoes a constant pressure process until the quality is 70%. Determine per kilogram (a) the work done, (b) the heat transferred, (c) the change of internal energy, and (d) the change of enthalpy. Ans. (a) -101.4 kJ/kg; (b)-810 kJ/kg; (c)-708.5 kJ/kg; (d) -810 kJ/kg 2. Steam at 3.1 MPa and with 74.28°C SH rejects 1973.36 kJ per kg of steam heat at constant pressure, determine (a) the final temperature and (b) the change in specific entropy. Ans. (a) 235.7°C; (b) -3.8572 kJ/kg•K 3. With 3% moisture, 2.5 kg of steam has an enthalpy of 6600 kJ. It is heated at constant pressure to a final condition of 80° superheat. Find (a) the pressure of the process and (b) the quantity of heat received by the steam. Ans. (a) 0.22 MPa (b) 575 kJ. 4. Five kg of water vapor are contained at 150 kPa and 90 percent quality in a suitable enclosure. Calculate the heat…
1. A piston-cylinder device contains 12kg of superheated water vapor at 400kPa and 200°C. Steam is now cooled at constant pressure until half of its mass condenses (i.e. 50% remains vapor). Determine: a) The boundary work b) The heat transfer for this process. c) Plot the P-v diagram (include the pressure, temperature and volume) 1 2 P(kPa) T(°C) v(m³/kg) u(kJ/kg) X Phase K
During processing in a steel mill, a 900 lb steel casting at 800°F is quenched by plunging it into a 550 gal oil bath, which is initially at a temperature of 100°F. After the casting cools and the oil bath warms, what is the final temperature of the two? The weight per unit volume of the oil is 7.5 lb/gal. (Express your answer using four significant figures.) T F