Homework Answers
![(Ashykem) = (As)Ther naj (Ashed tonsfr t Trreversibiub As)sustem b) ( c) (Ash1RPO for. 마ernal irreversible [Aluogsposthe] → is nega hue. O is post (AS)System) →-positive △S positive ısla/str) >c](http://img.homeworklib.com/questions/34e11360-02a2-11ec-9994-b15d0a4654d6.png?x-oss-process=image/resize,w_560)
Add Answer to:
5. (15) A closed system undergoes a process where heat transfer is allowed along the system...
True or False (Problems 1 through 10) 1. The change in entropy of a closed system...
True or False (Problems 1 through 10) 1. The change in entropy of a closed system is the same for every process between two specified states 2. The entropy of a fixed amount of an incompressible substance increases in every process for which temperature increases 3. A process that violates the second law of thermodynamics violates the first law of thermodynamics. 4. When a net amount of work is done on a closed system undergoing an internally reversible process, a...
Provide an explanation for upvote thank you 2. An actual turbine undergoes an adiabatic process generating...
Provide an explanation for upvote thank you 2. An actual turbine undergoes an adiabatic process generating entropy due to irreversibilities. The generated entropy a) causes the turbine’s exit temperature to be lower than if the turbine were reversible. b) causes the turbine’s exit temperature to be higher than if the turbine were reversible. c) causes the turbine’s exit pressure to be lower than if the turbine were reversible. d) causes the turbine’s exit pressure to be higher than if the...
c) A closed system undergoes a process for which the system entropy is constant (S2 S)...
c) A closed system undergoes a process for which the system entropy is constant (S2 S) Must the process be internally reversible? Explain your answer. THERMODYNAMICS d) Saturated water vapor at 5 bar undergoes a process in a closed system to a final state of 10 bar and 200°C. Can the process occur adiabatically? Explain your answer.
Air as an idcal gas in a closed system undergoes a reversible process between temperatures of...
Air as an idcal gas in a closed system undergoes a reversible process between temperatures of 1000 K and 400 K. The beginning pressure is 200 bar Determine the highest possible ending pressure for this process. If the ending pressurc is 3 bar, determine the heat transfer and work per unit mass, if the boundary of the system is in constant contact with a reservoir at 400 K.
Q1: The difference between a nonflow (closed) and a filow (open) system is that Nonflow system allows mass transfer while flow system does not Nonflow system allows Flow system Flow energy transfer w...
Q1: The difference between a nonflow (closed) and a filow (open) system is that Nonflow system allows mass transfer while flow system does not Nonflow system allows Flow system Flow energy transfer while flow system does not allows mass transfer while nonflow system does not system allows energy transfer while nonflow system does not Q2: For a nonflow system under constant pressure, the heat transfer into the system is ahwa Change of internal energy Change of entropy Change of enthalp...
Provide an explanation as well for the following questions. 1 Both energy and entropy can be...
Provide an explanation as well for the following questions. 1 Both energy and entropy can be transferred between a system and surroundings by heat, work, and mass flow True or False 2. An actual turbine undergoes an adiabatic process generating entropy due to irreversibilities. The generated entropy a) causes the turbine’s exit temperature to be lower than if the turbine were reversible. b) causes the turbine’s exit temperature to be higher than if the turbine were reversible. c) causes the...
Which statement can be attributed to the 2nd Law of Thermodynamics? a For any real process,...
Which statement can be attributed to the 2nd Law of Thermodynamics? a For any real process, energy is conserved. b For any real process, entropy is conserved. c Energy flow has a direction. d Energy has a magnitude. Entropy change across a pump used in a certain practical application was found out to have a negative value. Which of the below statement is true? a The entropy generation across the pump is negative. b There is heat loss from the...
1. The exergy change of a system can be a) Only positive during a process b)...
1. The exergy change of a system can be a) Only positive during a process b) Only negative during a process c) Positive or negative during a process d) None of the above 2. Which of the following air standard heat engine cycles can have a 100% second law efficiency a) Otto cycle b) Ericsson cycle c) Diesel cycle d) Brayton cycle 3. Both energy and exergy can be transferred by a) Heat and work b) Mass and heat c)...
Please answer all questions, I will upvote thanks. QUESTION 1 Which of the following statements about...
Please answer all questions, I will upvote thanks.
QUESTION 1 Which of the following statements about entropy is false? Entropy is a measure of molecular disorder. Entropy is a property and process path independent. Entropy is always generated during a process, including in a Carnot cycle. Entropy can decrease during a process. QUESTION 2 Which of the following statements about a reversible process is false? Reversible process is an idealized process that has no irreversibility involved. Work-consuming device consumes the...
15-43.) Air undergoes an internally reversible adiabatic process from 200 kPa, 50°C to a final pressure...
15-43.) Air undergoes an internally reversible adiabatic process from 200 kPa, 50°C to a final pressure of 2.5 MPa. Assuming ideal-gas behavior with constant spe- cific heats, calculate the temperature and the specific volume at the final state.
True or False (Problems 1 through 10) 1. The change in entropy of a closed system is the same for every process between two specified states 2. The entropy of a fixed amount of an incompressible substance increases in every process for which temperature increases 3. A process that violates the second law of thermodynamics violates the first law of thermodynamics. 4. When a net amount of work is done on a closed system undergoing an internally reversible process, a...
c) A closed system undergoes a process for which the system entropy is constant (S2 S) Must the process be internally reversible? Explain your answer. THERMODYNAMICS d) Saturated water vapor at 5 bar undergoes a process in a closed system to a final state of 10 bar and 200°C. Can the process occur adiabatically? Explain your answer.
Air as an idcal gas in a closed system undergoes a reversible process between temperatures of 1000 K and 400 K. The beginning pressure is 200 bar Determine the highest possible ending pressure for this process. If the ending pressurc is 3 bar, determine the heat transfer and work per unit mass, if the boundary of the system is in constant contact with a reservoir at 400 K.
Q1: The difference between a nonflow (closed) and a filow (open) system is that Nonflow system allows mass transfer while flow system does not Nonflow system allows Flow system Flow energy transfer while flow system does not allows mass transfer while nonflow system does not system allows energy transfer while nonflow system does not Q2: For a nonflow system under constant pressure, the heat transfer into the system is ahwa Change of internal energy Change of entropy Change of enthalp...
1. The exergy change of a system can be a) Only positive during a process b) Only negative during a process c) Positive or negative during a process d) None of the above 2. Which of the following air standard heat engine cycles can have a 100% second law efficiency a) Otto cycle b) Ericsson cycle c) Diesel cycle d) Brayton cycle 3. Both energy and exergy can be transferred by a) Heat and work b) Mass and heat c)...
Please answer all questions, I will upvote thanks.
QUESTION 1 Which of the following statements about entropy is false? Entropy is a measure of molecular disorder. Entropy is a property and process path independent. Entropy is always generated during a process, including in a Carnot cycle. Entropy can decrease during a process. QUESTION 2 Which of the following statements about a reversible process is false? Reversible process is an idealized process that has no irreversibility involved. Work-consuming device consumes the...
15-43.) Air undergoes an internally reversible adiabatic process from 200 kPa, 50°C to a final pressure of 2.5 MPa. Assuming ideal-gas behavior with constant spe- cific heats, calculate the temperature and the specific volume at the final state.
Most questions answered within 3 hours.
-
a) Draw two water molecules.
b) Clearly name and label the type of bond that exists...
asked 49 minutes ago -
C - Language
Write a loop that sets each array element to the sum of itself...
asked 1 hour ago -
(63
#14)
which of the following statments best describes how chamging
the concentration of the substances...
asked 5 hours ago -
In the following reaction, which element is undergoing
oxidation: Na2SO3 + N2O --> N2 + Na2SO4...
asked 6 hours ago -
Which of the following pairs of ions have the same electron
configuration?
I: Br− and Se2−...
asked 8 hours ago -
The Foremost Composite Materials Company is planning a two-day
sales conference for October 19-20. The conference...
asked 9 hours ago -
3) Illustrate the observed pattern of relatedness of organisms
versus adaptations to specific conditions. This means...
asked 9 hours ago -
In winter a lake has a 0.35 m thick ice layer over 1.10 m of
water....
asked 10 hours ago -
Assuming the following has been encrypted with a Vigenere cipher
below, use the method(s) and assumptions...
asked 10 hours ago -
How would I use switch statements to write a program that will
take an input of...
asked 10 hours ago -
Imagine a reaction in which methane gas combusts at a constant
pressure of 1 atm and...
asked 10 hours ago -
Two parallel wires (each 12 m in length) are separated by a
distance of 0.065 m...
asked 10 hours ago