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A frictionless piston-cylinder device contains a saturated liquid-vapor mixture of water at 373K. During a constant...
A frictionless-piston-cylinder device contains a liquid-vapor mixture of water at 200°C. During a constant- pressure process,...
A frictionless-piston-cylinder device contains a liquid-vapor mixture of water at 200°C. During a constant- pressure process, 500 kJ of heat is transferred to the surrounding air at 20°C. As a result, part of the water vapor contained in the cylinder condenses. a) Draw a schematic of your system including the boundary and all relevant energy transfer. (2 pts) b) Determine the entropy change of the water, in kJ/K. (3 pts) c) For the extended system (system + surroundings), write an...
Saturated water vapor which is initially at 500 kPa is contained in a piston-cylinder device arranged...
Saturated water vapor which is initially at 500 kPa is contained in a piston-cylinder device arranged to maintain a constant temperature. The piston is now moved until the water becomes a saturated liquid. How much work and how much heat (in kJ/kg) are transferred during this process?
A mass of 5.5 kg of saturated liquid-vapor mixture of water is contained in a piston-cylinder...
A mass of 5.5 kg of saturated liquid-vapor mixture of water is contained in a piston-cylinder at 101.325 kPa. Initially, 2.3 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 21 percent. Determine: a) the initial...
Ulston cylinder device contains a liquid-vapor xture at 300K. During a constant pressure added to water....
Ulston cylinder device contains a liquid-vapor xture at 300K. During a constant pressure added to water. As a result some of the liquid vaporizes. the entropy change? ure process. 750 kJ of heat is What is b.4 kJ/K c. 2.5 kJ/k d. 0.4 kJ/K 14. In which of the following processes does entropy change? a. Reversible adiabatic b. Isentropic Process procesS c. Internally reversible d. Constant-pressure expansion process process through a real turbine 15. A piston cylinder device contains superheated...
(a) An insulated piston cylinder device contains 5 L of saturated liquid water at a constant...
(a) An insulated piston cylinder device contains 5 L of saturated liquid water at a constant pressure of 150 kPa. The cylinder was equipped with the electric heater inside it. The liquid is heated at constant pressure until it becomes saturated vapour. Determine the entropy change of the water during this process in kJ/K. (10 Marks) (b) A stream of refrigerant R134a enters a steady flow device at 100 kPa, 50 °C at a rate of 1 kg/s. Two streams...
Eight (8) kilogram of saturated vapor of refrigerant R-134a is contained in a closed frictionless piston-cylinder...
Eight (8) kilogram of saturated vapor of refrigerant R-134a is contained in a closed frictionless piston-cylinder device at a pressure of 200 kPa. Heat is then transferred to the refrigerant. At the end of the process, the refrigerant has a temperature of 70 °C. Determine the amount of heat that is transferred during the process. Also, show the process on a T-v diagram with respect to the saturated liquid and vapor lines. (35 points).
A mass of 5 kg of saturated liquid-vapor mixture of water is contained in a piston-...
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...
A piston cylinder device initially contains 1.2kg of saturated liquid water at 220oC. Now, heat is...
A piston cylinder device initially contains 1.2kg of saturated liquid water at 220oC. Now, heat is transferred to the water until the volume quadruples and the cylinder contains saturated vapor only. Determine (a) the final volume of the tank, (b) the final temperature (c) the final pressure, and (d) the change in internal energy of the tank. To check your work, enter the final pressure in kPa in the box below. Also, sketch this process on a T-v diagram.
A piston-cylinder device initially contains 1.78 kg saturated liquid water at 200°C. Now heat is transferred...
A piston-cylinder device initially contains 1.78 kg saturated liquid water at 200°C. Now heat is transferred to the water until the volume quadruples and the cylinder contains saturated vapor only. Determine (a) the final volume of the tank, m (Round to six decimal places.) (b) the final temperature and pressure, MPa and (c) the internal energy change of the water kJ 0 Water 1.78 kg 200 C
4.) A 0.5 kg of saturated water vapor at 300°C is heated in a piston-cylinder device....
4.) A 0.5 kg of saturated water vapor at 300°C is heated in a piston-cylinder device. Now the steam expanded reversibly and isothermally to a final pressure of 600 kPa. Determine the heat transferred during this process. - Determine the work done during the process. Plot the PV diagram showing all the states and numbers on it.
A frictionless-piston-cylinder device contains a liquid-vapor mixture of water at 200°C. During a constant- pressure process, 500 kJ of heat is transferred to the surrounding air at 20°C. As a result, part of the water vapor contained in the cylinder condenses. a) Draw a schematic of your system including the boundary and all relevant energy transfer. (2 pts) b) Determine the entropy change of the water, in kJ/K. (3 pts) c) For the extended system (system + surroundings), write an...
Ulston cylinder device contains a liquid-vapor xture at 300K. During a constant pressure added to water. As a result some of the liquid vaporizes. the entropy change? ure process. 750 kJ of heat is What is b.4 kJ/K c. 2.5 kJ/k d. 0.4 kJ/K 14. In which of the following processes does entropy change? a. Reversible adiabatic b. Isentropic Process procesS c. Internally reversible d. Constant-pressure expansion process process through a real turbine 15. A piston cylinder device contains superheated...
(a) An insulated piston cylinder device contains 5 L of saturated liquid water at a constant pressure of 150 kPa. The cylinder was equipped with the electric heater inside it. The liquid is heated at constant pressure until it becomes saturated vapour. Determine the entropy change of the water during this process in kJ/K. (10 Marks) (b) A stream of refrigerant R134a enters a steady flow device at 100 kPa, 50 °C at a rate of 1 kg/s. Two streams...
Eight (8) kilogram of saturated vapor of refrigerant R-134a is contained in a closed frictionless piston-cylinder device at a pressure of 200 kPa. Heat is then transferred to the refrigerant. At the end of the process, the refrigerant has a temperature of 70 °C. Determine the amount of heat that is transferred during the process. Also, show the process on a T-v diagram with respect to the saturated liquid and vapor lines. (35 points).
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...
A piston-cylinder device initially contains 1.78 kg saturated liquid water at 200°C. Now heat is transferred to the water until the volume quadruples and the cylinder contains saturated vapor only. Determine (a) the final volume of the tank, m (Round to six decimal places.) (b) the final temperature and pressure, MPa and (c) the internal energy change of the water kJ 0 Water 1.78 kg 200 C
4.) A 0.5 kg of saturated water vapor at 300°C is heated in a piston-cylinder device. Now the steam expanded reversibly and isothermally to a final pressure of 600 kPa. Determine the heat transferred during this process. - Determine the work done during the process. Plot the PV diagram showing all the states and numbers on it.
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