FUND OF ENG THERMODYN(LLF)+WILEYPLUS
9th Edition
ISBN: 9781119391777
Author: MORAN
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Question
error_outline
This textbook solution is under construction.
Students have asked these similar questions
When a system undergoes a Isochoric process (P = 5 bar), the change in internal internal is 5 kJ and temperature during the process is 15°C. Then its change in entropy would be approximately 1.736 kJ/kgK
Select one:
True
False
8Q
Prove that, whenever a system undergoes a cycle, p<0
(b)
T.
i) Use the thermodynamic identity for a P-V-T system and the equation of state to show
that the entropy change of one mole of an ideal gas of vibrating diatomic molecules,
as volume and temperature are changed, is given by;
7
AS = S(V;,T;) – S(V;, T;) =
;Rln
+ Rln
T
ii) The gas undergoes an isobaric compression from V; to V;/2. Evaluate the change in
the number of microstates of the system that occurs as a result.
ii) Using the equation derived in i), demonstrate that for an ideal gas undergoing an
adiabatic expansion from initial volume V; to final volume V; the change in entropy is
zero.
Knowledge Booster
Similar questions
- Q1: 0.09 m³ of a fluid at 0.7 bar are compressed reversibly to a pressure of 3.5 bar according to a law py"=constant. The fluid is then heated reversibly at a constant volume until the pressure is 4 bar; the specific volume is then 0.5 m³/kg. A reversible expansion according to a law pv²=constant restores the fluid to its initial state. Calculate the net work done on or by the fluid in the cycle and sketch the cycle on a p-v diagramarrow_forwardQ1: Select the right choice 1- An isentropic process is always (a) Irreversible and adiabatic (b) Reversible and isothermal (c) Frictionless and adiabatic (e) None of these answers (d) Frictionless and irreversible 2- C, and C, are related by (a) k = C, / C, (b) k = C, C, (c) k = C, / C, (d) C, = (C,) * (e) None of these answers 3- The relation ( p = constant p* ) holds only for those processes that are (b) Isentropic (e) None of these answers (a) Reversible poly tropic (c) Frictionless isothermal (d) Adiabatic irreversible 4- In isentropic flow the temperature (a) Cannot exceed the reservoir temperature (b) Remains constant in duct flow (c) Is independent of the Mach number only (e) Cannot drop, and then increase again downstream 5- Specific heat at constant volume, is defined by (d) Is a function of Mach number (а) kC, (b) (дигәт) , (c) (ðu/aT) , (d) (at/au) , (e) None of these answersarrow_forwardThe following processes occur in a reversible thermodynamic cycle: 1-2: 0.2 kg heating at constant pressure 1.05 bar at specific volume 0.1 m3 3/kg and work done -515 J. 2-3: Isothermal compression to 4.2 bar. 3-4: Expansion according to law pv1./= constant. 4-1: heating at constant volume back to the initial conditions. Calculate the pressure at state four in bar to 3 decimal places?arrow_forward
- An oxygen gas R = 0.2598 KJ/kg°k and k = 1.395. If 4 kg of oxygen undergo 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. 1. Determine the Change in Internal Energy. choices: a.200.60 KJ. b.198.45 KJ. c.99.54 KJ. d.200.55 KJ 2. Determine the constant pressure-specific heat. choices: a.0.9865 KJ/kg-°K. b.0.9175 KJ/kg-°K. c.0.8580 KJ/Kg-°K. d.0.7843 KJ/kg-°K need complete solution, cancellation and symbol:)arrow_forwardIdentify the working substance, specify the kind of system and sketch the system boundary. PLEASE ANSWER it in 1hr.arrow_forwardWhen U=f(T,v) for an ideal gas if B=1.4 E -5 /K, and if partial derivative of internal energy with respect to volume at constant temperature 6.16 J/m3 with V=5 m3 then the pressure * :is 7.221 E 4 Pa 3.14 E 5 Pa 1.161 E 5 Pa 6.73 E 6 Pa In Otto cycle if T1=50 C, T2=70 C, * :V1=7.5 m3, y=1.5, then V3 is equal to 7.08 m^3 3.11 m^3 6.65 m^3 18.23 m^3arrow_forward
- A fluid expands reversibly according to a linear law from 3.8 bar to 1.1 bar, the initial volume is 0.006 m3. The fluid is then cooled reversibly at constant pressure, and finally compressed reversibly according to a law pv = constant back to the initial conditions of 3.8 bar and 0.006 m3. Calculate the net work of the cycle if the work done during the constant pressure cooling is given by 5930 N.m. Sketch the cycle on a p-v diagramarrow_forwardSolve all 4 pls.arrow_forwardpls answer all the given thanksarrow_forward
- Determine the change in specific entropy, in kJ/kg K, of CO2 as an ideal gas undergoing a process from T, = 300 K, p, = 1 bar to T2 = 1420 K. P2 = 5 bar. Additional information g°= 1.70203 KJKG K °2 = 3.37901 kJikg K 1.215 kJ/kg. °C 1.215 kJkg. K 0 1.190 kJ/kg K O 1.373 kJ/kg Karrow_forwardA turbine operating under steady-flow conditions receives steam at the following state; pssure,100 bar; specific internal energy 2773 kJ/kg, velocity 30 m/s. the state of steam leaving the turbine is as follow: pressure 1 bar, specific internal energy 2450 kJ/kg, velocity 90 m/s. Heat is rejected to the surroundings at the rate of 0.25 kW and the rate of steam flow through the turbine is 0.4 kg/s calculate the power developed by the .turbinearrow_forwardkg 3. The working fluid in a steady flow process flows at a rate of 220 The fluid min rejects 100 - KJ passing through the system. The conditions of the fluid at the inlet and outlet are given: V1 = 320 "; P, = 6.0 bar; U1 = 2,000 ; v1= 0.36 : KJ m3 and kg kg m3 The suffix 1 indicates the kg KJ V2 = 140 4; P2 = 1.2 bar; U2 = 1,400 : ; V2= 1.3 kg condition at the inlet and 2 indicates the outlet of the system. Determine the power capacity of the system in MW.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University Press
Mechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSON
Thermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEY
Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning
Engineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY