20.A 30 kg iron was put in a container with water. The water is at 10°C and the ironhas an initial temperature of 439•K until the iron was in thermal equilibrium withwater. Find the change in entropy. (Cp = 0.4 kJ/kg-K)%3D 21.A perfect gas has a value of R = 58.8 lbf-ft/lb-R and k = 1.26. If 20 Btu areadded to 5lb of this gas at constant volume when the initial temperatureis 90°F. Find T2, AH, AS, AU, and work for non - flow process.

Answered: 21.A perfect gas has a value of R =…

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

Similar questions

100 kg/min of steam at 43 bars, 360 °C expands through a turbine isentropically until the pressure becomes 0.35 bars. Find the work in hp.
i need the answer quickly
3.Four kilogram of steam is initially at 1MPa and x=40% inside the piston cylinder. There is a 30C superheat introduced in steam isopiestically. Find the change of entropy of the steam.
one kg of steam expands isentropically from 2.5mpa and 300 degrees to 0.95mpa.find the final quality and Wn and Ws
Q3/ A cylinder fitted with a movable piston contains water at 3 MPa, 50% quality, at which point the volume is 20 L. The water now expands to 1.2 MPa as a result of receiving 600 kJ of heat from a large source at 300°C. It is claimed that the water does 124 kJ of work during this process. Is this possible? i
p62,#14
A monatomic ideal gas is compressed isothermally from a volume of 2.0m^3 to 1.0 m^3. The initial pressure is 20 kPa. a. Find the work done on the gas from initial state to final state. b. Find the change in the internal energy of the gas. c. Find the amount of heat exchanged.
A piston cylinder containing air receives 3.892kw heat at constant temperature, and an initial pressure of 200kPa. The initial volume is 0.01 m3 .Find the final volume.
An Isobaric process is done on steam where it is heated to 200 C at 1.1 MPa. It was initially a kilogram of saturated liquid. Find the change in volume, change in internal energy, change in enthalpy, and change in entropy. (0.1848 m3, 1837.31 kJ, 2040.66 kJ, 4.4609 kJ/k) Table 3. Vapor p(t Sat.) 1.10 (184.09) 1.15 (186.07) 10 10 . Sat. 177.53 2586.4 2781.7 6.5535 170.13 2587.7 27833 6.5381 175 180 185 190 195 172.50 2567.9 2737.6 L75.28 25782 2771.0 178.02 2588.2 2784.0 180.71 2598.1 2796.9 183.36 2607.8 2809.5 6.6137 164.20 25648 2753.6 166.91 2573.2 2767.2 169 37 258SS 2780.5 172.18 2595.5 2793.5 174.75 2605.4 2806.4 6.4726 6.3028 63320 6.5603 6.5878 6.5004 63300 6.5587 6.5866 200 205 210 215 220 185.97 2617.4 2822.0 6.6401 188.56 2626.8 2834.2 6.6659 191.11 2636.1 2846.3 6.6911 193.63 2645.3 2858.3 6.7157 196.13 2654.3 2870.1 6.7398 177.28 2615.1 2819.0 179.77 2624.6 2831.4 182.24 2634.0 2843.6 184.68 2643.3 2855.7 187.09 2652.5 2867.6 6.7154 6.6146 6.6407 6.6661 6.6910 225 230 235…
During an isentropic non-flow process with air, the pressure drops from 75psia to 30psia. The air has mass of 0.25 lbm and the initial temperature was 265°F. Find: a. The final temperature, in °F b. The heat transferred, in BTU C. The change in internal energy, in BTU d. The work done, in BTU
1.Five kilogram of steam is initially at 1MPa and y=40% inside the piston cylinder. There is a 50C superheat introduced in steam isopiestically. Find the change of entropy of the steam.
Do step by step

SEE MORE QUESTIONS

Recommended textbooks for you

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

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

SEE MORE TEXTBOOKS

21.A perfect gas has a value of R = 58.8 lbf-ft/lb-R and k = 1.26. If 20 Btu are added to 5lb of this gas at constant volume when the initial temperature is 90°F. Find T2, AH, AS, AU, and work for non – flow process.