A piston-cylinder assembly with a linear spring acting on the piston as shown below contains the refrigerant R-134a at 15°C with a quality of x=0.6 in a control volume of V= 0.02 m³. The R-134a is heated up to 60°C at which point the specific volume is v=0.03002 m³/kg. Po = 101.3kPa a) Determine the final pressure. b) Determine the final volume. c) Determine the work in the process.

A piston-cylinder assembly with a linear spring acting on the piston as shown below contains the refrigerant R-134a at 15°C with a quality of x=0.6 in a control volume of V= 0.02 m³. The R-134a is heated up to 60°C at which point the specific volume is v=0.03002 m³/kg. Po = 101.3kPa a) Determine the final pressure. b) Determine the final volume. c) Determine the work in the process.

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

1) A 10 Liter pressure cooker has an operating pressure of 400 kPa. Initially, % of the volume is filled with saturated water and the rest is saturated vapor. What temperature is the vessel? After heating for 5 hours, the pressure cooker ran dry. What was the average rate of heat transfer?
In the piston-cylinder system shown in the figure, the piston rises up to (3) position. Choosing one of the 3 options given in the table, a) the pressure and temperature in positions (2, 3), b) Show the process change (1-2, 2-3) on the P-v diagram by drawing the saturation actions, c) find the total limit work and spring work, d) Find the heat transferred.
In a constant volume insulated sealed container, there is initially 0.7 kg helium at 27 ° C temperature and 350 kPa pressure. The helium in the container is mixed with a 0.015 kW rotary vane for half an hour. Finally; a) Find the temperature of the helium gas. b) Calculate the pressure.
Thermodynamics: Assume presure1, temperature1, x1, and alpha(i.e chose your own values).
Consider a sealed, rigid container of 10 kg of water vapor at 25°C and 80 kpa. A paddle wheelwith a power rating of 1 kW is operated within the tank for 30 minutes. During that time 7 kJ ofheat are lost to the surroundings. a.) Define the system. b.) What types of energy transfer occur? c.) What is the net energy change of the system?
B3
With a volume of 200 L and a cylinder pressure of 100 kPa with the piston on the stopper a piston-cylinder assembly contains water with a degree of dryness of 50%. A pressure of 200 kPa is needed to move the piston up. Volume 400 The cylinder continues to be heated until it reaches According to this; a) This process takes into account the saturation line in the T-v and P-v diagram. show. b) Calculate the temperature in the final state. c) Find the work done. d) Find the amount of heat transfer.
Q: Piston cylinder device contains 3 kg of vapor at 650 kPa with specific volume equal to 0.1 m'/kg. A) Describe the phase of the vapor ( superheated or saturated or mixture). Why?
b) A piston-cylinder system mounted vertically and has a partition on it. It contains 5 kg of saturated liquid water at 200 kPa. Heated system causes some of the water evaporates and the piston begins to move. When the piston is touching blockers, which was conceived by the volume of water is 1000 liters. Water is heated until the pressure increased four times. Show the process involved in p-v and T-v diagrams.
Refrigerant-134a is in an insulated canister with temperature 25 C. There is a partition in the canister so the refrigerant is a saturated liquid and takes up 1/100 of the volume of the canister. The rest of the volume is evacuated. When the canister is activated by squeezing (no work done activating) the partition breaks and the refrigerant fills the total volume. Final pressure is 100 kPa. a.) What are two assumptions needed for the problem? What properties are needed to solve part b.) and c.) b.) What is the change in specific enthalpy within the canister? c.) What is the final quality of the refrigerant within the canister?
Determine the quality of 290 kPa of steam when 570 kJ / kg of energy is lost from the saturated vapor.a. steam quality = ......%b. what is the temperature of the steam = ..... C
The temperature inside the piston-cylinder device is 400 C and the fluid is refrigerant R-134a. Can we determine its internal energy if the fluid is at saturated vapor state? A)no B)yes