A rigid, well-insulated tank contains a two-phase mixture of ammonia with 0.0025 ft of saturated liquid and 1.5 ft of saturated vapor, initially at p: -50 lb/in². A paddle wheel stirs the mixture until only saturated vapor at higher pressure, p2, remains in the tank. Kinetic and potential energy effects are negligible. Determine the pressure p2. in lb/in², and the amount of energy transfer by work, in Btu.

A rigid, well-insulated tank contains a two-phase mixture of ammonia with 0.0025 ft of saturated liquid and 1.5 ft of saturated vapor, initially at p: -50 lb/in². A paddle wheel stirs the mixture until only saturated vapor at higher pressure, p2, remains in the tank. Kinetic and potential energy effects are negligible. Determine the pressure p2. in lb/in², and the amount of energy transfer by work, in Btu.

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 vessel of volume 1 m3 initially contains one percent by volume saturated liquid water and the rest saturated vapour at 1 bar. How much heat is to be supplied so that the vessel gets filled with vapour? Take data from steam tables. Answer= 195,814 J
A piston–cylinder assembly contains ammonia, initially at a temperature of -20°C and a quality of 30%. The ammonia is slowly heated to a final state where the pressure is 6 bar and the temperature is 160°C. While the ammonia is heated, its pressure varies linearly with specific volume.For the ammonia, determine the work and heat transfer, each in kJ/kg.
A fixed amount of water is enclosed in a cylinder and piston assembly. The mass of the water is 20 kg. The water is initially a mixture of liquid and vapor with the following properties: P1 = 2000 kPa, ×1-40%, V1=0.0405 m /kg, u1 = 1583.3 kJ/kg The water is heated. After the heating process, the properties of water are as follows: Р2 = 2000 kPa, T2=600°C, V2=0.1996 m/kg, u2= 3291.5 kJ/kg Determine the expansion/contraction work and heat transfer (in kJ) during the process along with their sign
A two-phase liquid–vapor mixture of H2O with an initial quality of 25% is contained in a piston–cylinder assembly as shown in figure. The mass of the piston is 40 kg, and its diameter is 10 cm. The atmospheric pressure of the surroundings is 1 bar. The initial and final positions of the piston are shown on the diagram. As the water is heated, the pressure inside the cylinder remains constant until the piston hits the stops. Heat transfer to the water continues until its pressure is 3 bar. Friction between the piston and the cylinder wall is negligible. Determine the total amount of heat transfer, in J. Let g 9.81 m/s2.
14. 6.3 kg/s of oxygen undergoes a steady flow process. At inlet state, the reduced pressure is 2 and reduced temperature is 1.3. At the exit state, the reduced pressure is 3 and the reduced temperature is 1.7. Using the generalized compressibility and correction charts, what is the rate of change of total enthalpy for this process? Use co -0.913 kJ/kg K. Express your answer in kW.
A rigid, well-insulated tank contains a two-phase mixture of ammonia with 0.0022 ft3 of saturated liquid and 1.5 ft3 of saturated vapor, initially at p1 = 60 lbf/in2. A paddle wheel stirs the mixture until only saturated vapor at higher pressure, p2, remains in the tank. Kinetic and potential energy effects are negligible.Determine the pressure p2, in lbf/in2, and the amount of energy transfer by work, in Btu.
Water, initially saturated vapor at 4 bar, fills a closed, rigid container. The water is heated until its temperature is 360°C.For the water, determine the heat transfer, in kJ per kg of water.Kinetic and potential energy effects can be ignored.
Hydrogen gas at 65 kPa, 200 °C is heated in a closed, rigid vessel until it reaches to 400 °C. Determine the amount of heat required for 0.5 kg of this gas, taking ?? = 14.209 kJ/kg-K, ?? = 10.085 kJ/kg-K.
a pure substance at 8 Mpa and 400c is having a specific internal energy of 2864 kj/kg and specific volume of 0.03432m3/kg. for a mass of 5kg, what is the total enthalpy in kj?
Refrigerant 134a undergoes a change of state at constant pressure from 3.2 bars, 20oC to final state of (a) 0.030m3/kg and (b) -4oC. For part a determine the change in internal energy change in kJ/kg, and for part b determine the change enthalpy in kJ/kg. (c) sketch the two processes on the same Pv diagram
Water, initially saturated vapor at 4 bar, fills a closed, rigid container. The water is heated until its temperature is 400oC. For the water, determine the heat transfer, in kJ per kg of water. Kinetic and potential energy effects can be ignored.
A closed, rigid tank is filled with only saturated vapor (water), initially at 20 bar, is cooled until the pressure is 3 bar.. Show the process of the water on a sketch of the T-v diagram and evaluate the heat transfer, in kJ/kg. c. Determine the specific internal energy at state 1 (u1 )in kJ/kg d. Determine the quality x at state 2 e. Determine the specific internal energy at state 2 (u2) in kJ/kgf. Determine the energy transfer by heat/mass during the process (kJ/kg)