O 1.670 kg O 2.0216 kg QUESTION 19 The saturated liquid region is in which part...
Draw a T-v diagram of a pure substance including the liquid, vapor, and liquid/vapor region. Using this diagram, explain what happens if a saturated liquid is heated (such that the temperature rises) in a rigid (constant volume) container. Using the same diagram, explain what happens when a saturated vapor is heated (such that the temperature rises) in a rigid container.
Must the amount of heat absorbed as 1 kg of saturated liquid water boils at 100 °C, be equal to the amount of heat released as 1 kg of saturated water vapor condenses at 100 °C? Why? Which process requires more energy: completely vaporizing 1 kg of saturated liquid water at 1 atm pressure or completely vaporizing 1 kg of saturated liquid water at 8 atm pressure? Why? A food-scientist is cooking three identical beef stews in pans that are...
A mass of 0.2 kg of saturated liquid water is completely vaporized at a constant pressure of 100 kPa. Determine; (a) The volume change. (b) The amount of heat added to the water. (c) Show the process on a (p-v) diagram.
QUESTION 2 A piston-cylinder device contains 5 kg of saturated water liquid at 0.3 MPa. Heat is transferred at constant pressure until the temperature reaches 500 °C. (84 marks) What is the initial temperature of the system? b) What is the initial quality x? c) What is the initial specific enthalpy of the system? d) What is the final state? e) Show the process on a P-v diagram with respect to the saturation line. 1) What is the final specific...
QUESTION 2 A piston-cylinder device contains 5 kg of saturated water liquid at 0.3 MPa. Heat is transferred at constant pressure until the temperature reaches 500 °C. (84 marks) a) What is the initial temperature of the system? b) What is the initial quality x? c) What is the initial specific enthalpy of the system? d) What is the final state? e) Show the process on a P-v diagram with respect to the saturation line. f) What is the final...
thrmodinamices QUESTION 2 A piston-cylinder device contains 5 kg of saturated water liquid at 0.3 MPa. Heat is transferred at constant pressure until the temperature reaches 500 °C. (84 marks) a) What is the initial temperature of the system? b) What is the initial quality x? c) What is the initial specific enthalpy of the system? d) What is the final state? e) Show the process on a P-v diagram with respect to the saturation line. f) What is the...
A mass of 5 kg of saturated liquid-vapor mixture of water is contained in a piston- cylinder device at 125 kPa. Initially. 3 kg of the water is in the liquid phase and the rest is in the vapor phase. Heat is now transferred to the water, and the piston, which is resting on a set of stops, starts moving when the pressure inside reaches 300 kPa. Heat transfer continues until the total volume increases by 10%. We denote the...
How to solve this question (b) A mass of 500 g of saturated liquid water is completely vaporised at a constant pressure of 100 kPa. (i) Draw a schematic of the states as well as the P-v diagram of the vaporisation process. (ii) Determine the volume change. (iii) Determine the amount of energy transferred to the water. (c) Given a vessel with V = 0.4 m3 filled with m = 2 kg of water at P = 600kPa: (i) Explain...
In a well-insulated rigid tank which contains 2 kg of a saturated liquid-vapor mixture of water at 200 kPa, 40% of the mass is in the liquid phase. A heater is providing heat to the content of the tank so that all liquid phase converts to vapor phase. Calculate the entropy change of water in this process.
nts) Calculate the change in internal energy during the conversi . (20 poi on of 2 kg of saturated liquid water to saturated vapor i 100 kPa? Assuming heat is added to the piston cylinder in the process, what is the work performed by the piston (boundary work)? What is the required heat in if you assume a heat loss of 50 kJ during the process? Please show work using a T-v AND P-v diagram n a piston cylinder at...