Solve 2) A certain ideal gas whose R = 278.6 J/kg.K and c,= 1.015 KJ/kg.Kexpands isentropically from 1517 KPa, 288°C to 965 KPa. For 454 g/s ofthis gas determine, (a) W, , (b) V2 , (c) AU ,and (d) AH.%3D%3D

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Answered: 2) A certain ideal gas whose R = 278.6…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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3. A gas initially 103.4 kPa and 0.0566 m3 undergoes a process to 620.36 kPa and 0.017 m3 during which the enthalpy increases by 16.35 KJ, Cv = 10.217 kJ/kg-oK. Determine the cp of gas. (3 DECIMALS IN FINAL ANSWER PLS)
Oxygen (O2) is contained within a horizontal piston-cylinder system initially O2 at 500 kPa, 200°C, and occupies a volume of 0.04 m². The gas expands according to the process described by pV!.15 = Constant, until the temperature reaches 97°C. Considering oxygen as an ideal gas and taking the specific heat of oxygen as constant at an average temperature between two states, a) Determine the final pressure (in kPa) and volume (m³). b) Determine the amount of work and heat transfer during the process, in kJ. c) Find the entropy production in this process (in kJ/K) if the boundary temperature is taken as 350°C. d) Write down the main sources of irreversibilities. e) Draw the processes on P-v and T-s diagrams.
i) Can water vapor at 442°C and 75 bar be modeled at ideal gas?
need help on g and h
Please answer (a), (b), (c).
9. A certain ideal gas whose R=278.6J/kg.Kande =1.015 kJ/kg. K expands isertropically from 1517 kPa, 288 Ć to 965 kPa. For 454 g/s of this gas determine, (a) W (b) V (e) AU and (g) AH.
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1. During a polytropic process, 10 lb of an ideal gas, whose R=40 ft.lb/lb.R and c = 0.25 Btu/lb.R, changes state from 20 psia and 40°F to 120 psia and 340°F. Determine (a) n, (b) AU and AH, (c) AS, (d) Q, (e) SpdV, (f) - SVdp. (g) If the process is steady flow during which AK = 0, what is W?. What is AK if W, = 0? (h) What is the work for a nonflow process?
1. During a polytropic process, 10 lb of an ideal gas, whose R = 40 ft.lb/lb.R and c = 0.25 Btu/lb.R, changes state from 20 psia and 40°F to 120 psia and 340°F. Determine (a)n, (b) AU and AH, (c) AS, (d) Q, (e) SpdV, (f) - SVdp. (g) If the process is steady flow during which AK = 0, what is W?. What is AK if W, = 0? (h) What is the work for a nonflow process? n = 1.356 AU= 595.8 Btu AH = 750 Btu -SVdp = -587.6 Btu AS = 0.2543: Btu OR Q = 162.3 Btu pdv = 433.3 Btu
B) Calculate the volume of the vapor using (a) ideal gas law (b) steam tables (c) the generalized compressibility chart. R = 0.4615 kP.m3/kg.K Ter 647.1 K Per = 22.06 MPa
3) Water plus steam is Homogeneous system O Pure Substance Heterogeneous system O Open system 4) For water at pressure 325 kPa and X=0.4, the enthalpy is O 1345.57 kj/kg O 1454.47 kj/kg O 1435.57 kj/kg O 1534.57 kj/kg

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2) A certain ideal gas whose R = 278.6 J/kg.K and c,= 1.015 KJ/kg.k expands isentropically from 1517 KPa, 288°C to 965 KPa. For 454 g this gas determine, (a) W,, (b) V,, (c) AU ,and (d) AH. %3D