Homework Answers
Add Answer to:
thermodynamics
PROBLEM 3. Oxygen expands from 125 kPa, 350 K and 0.25 mºto 100 kPa in...
MEN215 Exam 1 S.. x ton... MEN215 Final Fall 57.5% 1 /3 Problem 1: 30 points Saturated water vapor at 180 "C is...
MEN215 Exam 1 S.. x ton... MEN215 Final Fall 57.5% 1 /3 Problem 1: 30 points Saturated water vapor at 180 "C is contained in a piston cylinder arrangement that has an initial volume of 0.025 m2. Heat is transferred and the steam expands in a polytropic process with n 1 until it reaches a pressure of 200 kPa. a) Find the amount of heat transferred in kl. b) Show the process path on a P-v diagram.
MEN215 Exam 1...
5. A rigid tank initially contains 10 kg O2 at 200 kPa and 600 K. Now...
5. A rigid tank initially contains 10 kg O2 at 200 kPa and 600
K. Now O2 is gradually cooled under constant volume until its
temperature reaches 455 K. (18 Points) (a) Calculate the pressure
of O2 at final state. (4 points) (b) Determine the boundary work.
(6 points) (b) Calculate the heat transfer during this process. (8
Points)
let me know if u want the property table
MAE 320 - Thermodynamics + > e ecampus.wvu.edu/bbcswebdav/pid-6846897-dt-content-rid-82617141 1/courses/star50314.202005/MAE320-2020-Summer-HW04.pdf Q4 to Q6...
4. A piston/cylinder contains pure oxygen at ambient conditions 20°C, 100 kPa. The piston is moved...
4. A piston/cylinder contains pure oxygen at ambient conditions 20°C, 100 kPa. The piston is moved to a volume that is seven times smaller than the initial volume in a polytropic process with exponent n = 1.25. Find the final pressure and temperature, the specific work, and the specific heat transfer. Use table A.8 to find the internal energy at each state. Plot the process in a P – v diagram. 300 TABLE A.8 Ideal Gas Properties of Various Substances,...
Thermodynamics one pls clear hand writing thanks (i) Define pure substance and comprehensively describe the phase...
Thermodynamics one
pls clear hand writing
thanks
(i) Define pure substance and comprehensively describe the phase changes of a pure substance considering water as an example. Use diagrams to illustrate your understanding of this point.. (1 mark) (ii) The variations of properties during phase-change processes are best studied and understood with the help of property diagrams including the T-v, P-v, and P-T diagrams for pure substances. Taking water as an example, comprehensively sketch and discuss how these tables (1 mark)...
.85-120 Thermodynamics Tutorial 3 Problem 1. An inventor claims to have invented 4 engines, each of...
.85-120 Thermodynamics Tutorial 3 Problem 1. An inventor claims to have invented 4 engines, each of which operates between constant-temperature reservoirs of 400 and 300 K. Consider the 1st and 2nd laws of thermodynamics to evaluate the engines. For each engine, state and explain why it does or doesn't violate the 1st and 2nd Laws of Thermo. 1st law hint: Think quantity of work. 2nd Law hint: Think process efficiency. Engine 1 2 3 4 QH (J) 200 500 600...
4. An ideal Carnot power generation cycle using air is represented by the diagram below. The prop...
4. An ideal Carnot power generation cycle using air is represented by the diagram below. The properties of the state points are given in the table below. Take the properties of air to be cp 0040.717. and RBhthe ns: and G, have been 1.004 chosen as the average values between the high temperature and low temperature processes, in order for you to not have to worry about the temperature dependence of cp and c, for this problem.) Recall that y...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible proce...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible processes only Un d) limited by the second law of thermodynamics for all processes. processes, it is destroyed partly or completely). e) equal to the Gibs free energy of the system. 211two electrodes, one made of u (E.-3.06 V) and another made of Cu ΟΕ.+034V placed in an...
174 2 combustor , =1500 K Problem 2 (22 pts): Brayton cycle and entropy calculations An...
174 2 combustor , =1500 K Problem 2 (22 pts): Brayton cycle and entropy calculations An open Brayton cycle is used to generate electricity. Air enters the isentropic compressor at T1 = 300 K and P1 = 100 kPa with a mass flow rate m = 1.5 kg/s. The combustor can be modeled as a constant-pressure heat exchanger, supplying 1540 kW of thermal power to the air from a thermal reservoir (Th = 1750 K). Air enters the isentropic turbine...
I need your help solving this thermodynamics problem please: Question Completion Status: QUESTION 1 20 points...
I
need your help solving this thermodynamics problem please:
Question Completion Status: QUESTION 1 20 points Save Ans The heat-pump system shown is designed to provide water-heating and space-cooling. The system includes a heat exchanger to subcool the R134a refrigerant at the outlet of the water heater while heating the refrigerant at the outlet of the evaporator. Given the following data, determine the enthalpy at each station, 1 through 6, using the R134a property tables (click here). Type your answers...
MEN215 Exam 1 S.. x ton... MEN215 Final Fall 57.5% 1 /3 Problem 1: 30 points Saturated water vapor at 180 "C is contained in a piston cylinder arrangement that has an initial volume of 0.025 m2. Heat is transferred and the steam expands in a polytropic process with n 1 until it reaches a pressure of 200 kPa. a) Find the amount of heat transferred in kl. b) Show the process path on a P-v diagram.
MEN215 Exam 1...
5. A rigid tank initially contains 10 kg O2 at 200 kPa and 600
K. Now O2 is gradually cooled under constant volume until its
temperature reaches 455 K. (18 Points) (a) Calculate the pressure
of O2 at final state. (4 points) (b) Determine the boundary work.
(6 points) (b) Calculate the heat transfer during this process. (8
Points)
let me know if u want the property table
MAE 320 - Thermodynamics + > e ecampus.wvu.edu/bbcswebdav/pid-6846897-dt-content-rid-82617141 1/courses/star50314.202005/MAE320-2020-Summer-HW04.pdf Q4 to Q6...
4. A piston/cylinder contains pure oxygen at ambient conditions 20°C, 100 kPa. The piston is moved to a volume that is seven times smaller than the initial volume in a polytropic process with exponent n = 1.25. Find the final pressure and temperature, the specific work, and the specific heat transfer. Use table A.8 to find the internal energy at each state. Plot the process in a P – v diagram. 300 TABLE A.8 Ideal Gas Properties of Various Substances,...
Thermodynamics one
pls clear hand writing
thanks
(i) Define pure substance and comprehensively describe the phase changes of a pure substance considering water as an example. Use diagrams to illustrate your understanding of this point.. (1 mark) (ii) The variations of properties during phase-change processes are best studied and understood with the help of property diagrams including the T-v, P-v, and P-T diagrams for pure substances. Taking water as an example, comprehensively sketch and discuss how these tables (1 mark)...
.85-120 Thermodynamics Tutorial 3 Problem 1. An inventor claims to have invented 4 engines, each of which operates between constant-temperature reservoirs of 400 and 300 K. Consider the 1st and 2nd laws of thermodynamics to evaluate the engines. For each engine, state and explain why it does or doesn't violate the 1st and 2nd Laws of Thermo. 1st law hint: Think quantity of work. 2nd Law hint: Think process efficiency. Engine 1 2 3 4 QH (J) 200 500 600...
4. An ideal Carnot power generation cycle using air is represented by the diagram below. The properties of the state points are given in the table below. Take the properties of air to be cp 0040.717. and RBhthe ns: and G, have been 1.004 chosen as the average values between the high temperature and low temperature processes, in order for you to not have to worry about the temperature dependence of cp and c, for this problem.) Recall that y...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible processes only Un d) limited by the second law of thermodynamics for all processes. processes, it is destroyed partly or completely). e) equal to the Gibs free energy of the system. 211two electrodes, one made of u (E.-3.06 V) and another made of Cu ΟΕ.+034V placed in an...
174 2 combustor , =1500 K Problem 2 (22 pts): Brayton cycle and entropy calculations An open Brayton cycle is used to generate electricity. Air enters the isentropic compressor at T1 = 300 K and P1 = 100 kPa with a mass flow rate m = 1.5 kg/s. The combustor can be modeled as a constant-pressure heat exchanger, supplying 1540 kW of thermal power to the air from a thermal reservoir (Th = 1750 K). Air enters the isentropic turbine...
I
need your help solving this thermodynamics problem please:
Question Completion Status: QUESTION 1 20 points Save Ans The heat-pump system shown is designed to provide water-heating and space-cooling. The system includes a heat exchanger to subcool the R134a refrigerant at the outlet of the water heater while heating the refrigerant at the outlet of the evaporator. Given the following data, determine the enthalpy at each station, 1 through 6, using the R134a property tables (click here). Type your answers...
Most questions answered within 3 hours.
-
Sapphire Aerospace operates 52 weeks per year, and its cost of
goods sold last year was...
asked 12 minutes ago -
Which of these four researchers is most likely to have made Type
1 error
Kim who...
asked 8 minutes ago -
Create ER Model
Assets are resources that are used in CMS to display content.
Each asset...
asked 7 minutes ago -
In a performance test, each of two cars takes 8.9 s to
accelerate from rest to...
asked 9 minutes ago -
A. Suppose your manager indicates that for a normally
distributed data set you are analyzing, your...
asked 13 minutes ago -
For each the following molecules draw the best possible
structure based on formal charges for each...
asked 13 minutes ago -
A proton moves in the plane of this paper toward the top of the
page. A...
asked 23 minutes ago -
different divisions differing lines of business use
different costs of capital because their cost of equity...
asked 19 minutes ago -
Give an algorithm to determine whether or not the elements
of
an array of integers are...
asked 26 minutes ago -
. Gravimetric analysis. The gravimetric analysis that we will
perform in lab occurs according to the...
asked 45 minutes ago -
Learning curve problem:
A company was ordered to make 6 custom made parts. the labor
costs...
asked 42 minutes ago -
When you don’t recall operator precedences you can Guess
Experiment with the compiler Look in a...
asked 45 minutes ago