؟ What is the enthalpy (kJ/kg) of refrigerant 134a which is at 4 C and quality...
What is the enthalpy (kJ/kg) of refrigerant 134a which is at 4 C and quality 40%? Select one: a. h = 204.57 kJ/kg. O b. h = 96.35 kJ/kg. O c. h = 135.46 kJ/ kg. O d.h = 115.90 kJ/kg. O e. h = 155.02 kJ/kg.
What is the enthalpy (kJ/kg) of refrigerant 134a which is at 4C and quality 20%? Select one: a. h = 96.35 kJ/ kg. O b. h = 155.02 kJ/kg. O c. h = 204.57 kJ/ kg. O d. h = 115.90 kJ/ kg. O e. h = 135.46 kJ/kg.
What is the enthalpy (kJ/kg) of refrigerant 134a which is at 4C and quality 40%? Select one: a. h = 204.57 kJ/kg. O b. h=96.35 kJ/kg. O c. h = 135.46 kJ/kg. O d. h = 115.90 kJ/kg. O e. h = 155.02 kJ/kg. A car (1000 kg) climbs up a hill sloped at 28° while traveling at constant speed of 80 km/hr, what is the power (kW) required for the uphill motion? Select one: O a. power 102.3 kW....
What is the enthalpy (kJ/kg) of refrigerant 134a which is at 4 C and quality 30%? . LE 20 zain JO Zain JO Question 9 Not yet answered Marked out of 1.00 P Flag question A car (1000 kg) climbs up a hill sloped at 28° while traveling at constant speed of 80 km/hr, what is the power (kW) required for the uphill motion? Select one: a. power 108.7 kW. b. power 89.6 kW. c. power 119.7 kW. d. power...
A liquid-vapor mixture of refrigerant-134a is at -10°C with a quality of 40 percent. Determine the value of the Gibbs function, in kJ/kg. when the two phases are in equilibrium. R-134a -10°C 0.4 kJ/kg kJ/kg
Refrigerant 134a in a cylinder-piston assembly is at 240 kPa with a quality 15% and then as a result of heat added the quality increases to 45%, what is the change in volume per one unit of mass (m3/kg)? The piston is assumed to move freely but it is sealed tight that does not allow mass exchange. Refrigerant 134a in a cylinder-piston assembly is at 240 kPa with a quality 15% and then as a result of heat added the...
A rigid tank contains 56,4 kg of refrigerant- 134a at 850 kPa. If 32,6 kg of the refrigerant is in the liquid form and the rest is in the vapor form, determine : a. The temperature in the tank b. The quality c. The average specific volume d. The volume of the tank
(4 points) A-C line Liquid R-134a A rigid container containing 6.8 kg of saturated liquid R-134a at 26°C is used to fill an air- conditioning system. A valve is opened and allows liquid R-134a to escape the tank into the A-C line until only 0.85 kg of R-134a remains in the tank, at which point the valve is closed. During the process, heat transfer is allowed to occur to maintain the tank temperature at 26 °C. What is the quality...
A cooled, closed container holds Refrigerant 134a, initially at 0 °C and 59% quality. It has a safety valve that opens when the pressure inside reaches 5 bars. One night, the cooling system malfunctions, allowing the Refrigerant 134a to be heated until eventually the safety valve opens. What is the temperature of the Refrigerant 134a in the container when the valve first opens?
Problem 7.023 SI As shown in the figure below, 1.25 kg of refrigerant R-134a is contained in a well-insulated piston-cylinder assembly fitted with an electrical resistor of negligible mass. The refrigerant is initially at 2 bar and a quality of 50%. The resistor is activated until the volume of the refrigerant doubles, while its pressure varies negligibly. Determine, in kJ (a) the amount of energy transfer by work to the piston and (b) the accompanying exergy transfer. (c) the amount...