compressor with a power of 2.39 kW compresses 3.3 kg of refrigerant R-134a per minute. If the enthalpy of R-134a at the inlet to the compressor is 242.4 kJ/kg, which of the following is the enthalpy at the outlet? a) 285.85 kJ/kg B) 312.46 kJ/kg NS) 262.91 kJ/kg D) 310.85 kJ/kg TO) 243.12 kJ/kg

compressor with a power of 2.39 kW compresses 3.3 kg of refrigerant R-134a per minute. If the enthalpy of R-134a at the inlet to the compressor is 242.4 kJ/kg, which of the following is the enthalpy at the outlet? a) 285.85 kJ/kg B) 312.46 kJ/kg NS) 262.91 kJ/kg D) 310.85 kJ/kg TO) 243.12 kJ/kg

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

Related questions

Q: The mass flow rate of water entering a turbine is 17.7 kg/s and its enthalpy is 3817.2 kJ/kg. The…

Q: Air enters an adiabatic nozzle steadily at 500 K and 500 kPa with a low velocity. and exits at a…

A: At state1:T1=500 KP1=500 kPaV1=0 (low velocity so 0)At state 2:P2=100 kPaSpecific heat of air at…

Q: piston-cylinder assembly contains 1.2 kg of air at a pressure of 313 kPa and a temperature of 107°C.…

A: For solution refer below images.

Q: PROBLEM 4. Oxygen at the rate of 1.36 kg undergoes a reversible isobaric process min during which…

Q: 29-A hot metal block is dropped into water with a mass of 150 kg and a temperature of 25°C in an…

Q: Liquid water enters a 36 kW pump at a pressure of 95 kPa and a flow rate of 6 kg/s. Which of the…

Q: 1-Air enters an adiabatic nozzle at a pressure of 374 kPa and 500 K and exits at a pressure of 80…

Q: What is the enthalpy of the 5 kg R-134a refrigerant in the container?

A: Option A is correct

Q: Air enters a continuous flow adiabatic turbine at a flow rate of 2 kg / s, a pressure of 0.6 MPa, a…

A: Given Mass fow rate m=2kg/s Inlet temperature T1=350°C Inlet pressure P1=0.6MPa Exit temperature T2=…

Q: An adiabatic pump is used to reversibly raise saturated liquid water from 20 kPa to 5 MPa. Which of…

A: Given:- At inlet :- Condition is Saturated liquid water Pressure (P1) = 20 kPa At…

Q: urbine accepts water at 15 MPa, 600 C and enthalpy of 3581 kJ/kg. After expansion stage, the…

Q: With a pressure of 120 kPa and a temperature of – 24°C, 0.19 liters of refrigerant 134a is turned…

A: Pressure of R-134a, P = 120 kPa Temperature, T = -24 C Volume of R-134a, V = 0.19 Liters

Q: kettle has a volume of 0.8 liters. Initially, water with a temperature of 30°C and a pressure of 1…

A: It is required to determine internal energy at final state

Q: Determine the mass of ideal air inside the chamber at a volume of 10 m^3 , pressure of 3 bar and…

A: Given data: Pressure (P) = 3 bar = 3*105 Pa Volume of the chamber (V) = 10 m3…

Q: The mass flow rate of compressed liquid water through a pump is 20 kg/s and the pressure is…

A: To choose: The correct op[tion. Given: The mass flow rate is m˙=20 kg/s. The initial pressure is…

Q: Turbine accepts water at 1.2 MPa, 250 C and enthalpy of 2934 kJ/kg. After expansion stage, the…

Q: - Air enters an adiabatic gas turbine at 490ºC and exits at 108ºC. If the inlet and outlet…

Q: Water with a mass of 2,425 kg passes from a saturated liquid state to saturated vapor at a constant…

A: Mass of water, m=2.425 kg Pressure of water, P=100 Kpa

Q: Steam flows isentropically through a nozzle from 1550 kPa, 288°C to 980kPa. For 453 g/s determine a)…

A: Given data: P1 = 1550 kPaT1 = 288 °C =561 KP2 = 980 kPam˙ = 453 g/s = 0.453 kg/s

Q: With a pressure of 120 kPa and a temperature of – 24°C, 0.19 liters of refrigerant 134a is turned…

A: The problem refrigeration can be solved by

Q: - Hot water at a flow rate of 0.7 kg/s at 70ºC and cold water at a temperature of 25ºC at a flow…

A: Option A is the answer. We have to use compressed liquid water properties table. If not available…

Q: Argon gas enters an adiabatic compressor at a speed of 28.5 m/s and exits at a speed of 66.5 m/s.…

Q: PROBLEM 4. Oxygen at the rate of 1.36 kg undergoes a reversible isobaric process min during which…

Q: Find the enthalpy of fluid at 100 kPa with a specific volume of 1 m^3/kg and internal energy 100…

A: Given, Pressure, p=100 kPa Specific volume,v=1m3/kg Internal energy, E=100 kJ/kg

Q: - Air entering an adiabatic gas turbine with a mass flow of 24 kg/s, leaves the turbine with a…

A: Given that, Mass flow rate of air, m˙=24 kg/sec,Specific volume of air after exit from turbine,…

Q: A liquid enters a pump and saturates at 10 psia, and leaves at a pressure of 500 psia. If the…

Q: 1240 kW

Q: Water vapor enters an adiabatic turbine at a pressure of 15 MPa and a temperature of 1000 ° C, with…

A: we can use steam table and mollier chart to get the value of entropy S1 at 1000° C and 15 Mpa…

Q: spectively, which of the following is the energy obtained

A: Option(A) is correct

Q: What is the enthalpy of refrigerant 134a at a temperature of – 8 °C and a pressure of 360 kPa? a)…

A: It is required to determine enthalpy of R134a at 360 kPa and-8°C

Q: Water vapor enters a continuous flow adiabatic turbine at a pressure of 25 mPa and a temperature of…

Q: a closed system, the refrigerant-134a (R-134a) at 320 kPa pressure and 30°C changes state at…

A: For this problem we will use the standard property table of R134-a for the state change latent heat…

Q: Steam flows isentropically through a nozzle from 1550 kPa, 288°C to 980kPa. For 453 g/s determine a)…

A: Given:P1=1550 kPaT1=288°CP2=980 kPam=0.453 Kg/s

Q: 1. Determine the work done by 1-kg fluid system as it expands slowly within the piston-cylinder…

A: Dear student, According to the guidelines, I am allowed to answer only three…

Q: The refrigerant 134a, with an entropy of 0.79 kJ/kgK, is at a pressure of 700 kPa. What is the…

Q: A 1.7 m³ constant volume container initially contains air at a pressure of 98 kPa and a temperature…

A: Given: The volume of container, V = 1.7 m^3 The pressure of air in container, P1 = 98 kPa The…

Q: -The saturated vapor refrigerant - 134a (refrigerant, R-134a) is compressed in a compressor from a…

Q: 10 - What is the specific volume of air leaving a continuous flow adiabatic diffuser at 159°C and…

A: Given:T=159°CP=100 KPa

Q: Piston-cylinder device contains 5 kg of steam. The steam undergoes an internal energy change of 40…

Q: From a state defined by 300 psia, 100 cu ft and 240°F, helium undergoes an is entropic process to…

Q: A heat exchanger enters 25 kg of water vapor per minute as saturated steam at a pressure of 800 kPa…

Q: Air enters the engine of the aircraft with a mass flow rate of 50 kg/sec and with a speed of 250…

Q: At a pressure of 0.8 MPa and a degree of dryness x = 0.65, the refrigerant R-134a is heated to…

A: Initial condition of refrigerant, P1=0.8 MPa, x1=0.65 Refrigerant condition after heating, P2=P1=0.8…

Q: 1)A)What is Conduction in Heat Transfer ? B)Does the Conduction affect the lifetime of the turbine?…

A: 1(A) Conduction: Conduction is a way of transferring the heat from one solid object to another solid…

Q: Water vapor enters a continuous flow adiabatic nozzle at a temperature of 350ºC and a pressure of…

Q: The pressure of saturated water vapor is increased to 1300 kPa at a temperature of 170°C, under…

A: Given , saturated water is at temperature 170°C . From steam table , At 170°C , properties of…

Question

7 -

A compressor with a power of 2.39 kW compresses 3.3 kg of refrigerant R-134a per minute. If the enthalpy of R-134a at the inlet to the compressor is 242.4 kJ/kg, which of the following is the enthalpy at the outlet?

a)	285.85 kJ/kg

B)	312.46 kJ/kg

NS)	262.91 kJ/kg

D)	310.85 kJ/kg

TO)	243.12 kJ/kg

Expert Solution

Step 1

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

31 - As the air is compressed in a compressor, its temperature is measured to rise from 22°C to 500°C. What is the work given to the compressor? a) 384.9 kJ/kg B) 438.6 kJ/kg NS) 484.2 kJ/kg D) 491.9 kJ/kg TO) 431.5 kJ/kg
19
An oxygen gas R = 0.2598 KJ/kg°k and k = 1.395. If 4 kg of oxygen undergoes a reversible non-flow constant pressure process from initial volume =1.2 cubic meter and initial pressure = 690 kPa to a state where final temperature = 600°C. a.) What is the initial temperature? b.) Determine the constant volume specific heat. c.) Determine the Change in Internal Energy. d.) Determine the constant pressure specific heat. e.) Determine the Change in Enthalpy.
36 - As the air is compressed in a compressor, its temperature is measured to rise from 20°C to 400°C. What is the work given to the compressor? a) 384.9 kJ/kg B) 484.2 kJ/kg NS) 491.9 kJ/kg D) 431.5 kJ/kg TO) 438.6 kJ/kg
Air is compressed from 20 ° C and 180 kPa pressure to 340 ° C and 600 kPa pressure. Assuming that the specific heats for air at room temperature are constant, what is the isentropic efficiency of the compressor? A) %83 B) %62 c) %17 D) %38 E) %91
23 - The refrigerant R-134a, which enters a compressor at a pressure of 100 kPa and a mass flow rate of 0.3 kg/s at – 20°C, exits at 336.11 kJ/kg enthalpy. What is the power supplied to the compressor? a) 28.98 kW B) 53.72 kW NS) 29.77 kW D) 50.45 kW TO) 23.10 kW
This is part one of a two-part problem. Water at 2.0 kg/s enters the boiler at 40°C and 2000 kPa and exits the boiler at 2000 kPa. If the heat transfer rate into the boiler is 8 000 kW, what is the specific enthalpy (h) at the exit of the boiler? + A) 3831 kJ/kg OB) 4170 kJ/kg OC) 4167 kJ/kg D) none of A), B) or C) Boiler Turbine
Urgent.
8 - The pressure of a closed container with a constant volume of 30 liters is 300 kPa. What is the enthalpy of the 5 kg R-134a refrigerant in the container? a) 54.79 kJ/kg B) 94.42 kJ/kg NS) 60.71 kJ/kg D) 227.28 kJ/kg TO) 68.08 kJ/kg 9 -
8 - Water vapor enters an adiabatic nozzle with a continuous flow at a temperature of 350ºC and a pressure of 4 MPa. What is the specific volume at the inlet? a) 0.06647 m³/kg B) 0.07343 m³/kg NS) 0.05842 m³/kg D) 0.05197 m³/kg TO) 0.05784 m³/kg
Turbine accepts water at 430 kPa, 200 C and enthalpy of 2859 kJ/kg. After expansion stage, the pressure, temperature and enthalpy values become 3 atm, 150 C and 2761 kJ/kg. If the turbine is well insulated, find the work output from it? A)130 kJ/kg B)128 kJ/kg C)240 kJ/kg D)98 kJ/kg E)78 kJ/kg
19 - Which of the following is the specific volume of refrigerant 134a at a pressure of 120 kPa and a temperature of – 24°C? a) 0,17395 m³/kg O B) 0,0007324 m/kg O NS) 0,0007297 m/kg O D) 0,0007620 m³/kg O TO) 0,16212 m²/kg