Problem #3: Assume air is an ideal gas with variable specific heat, and that the reference temperature and pressure are T, = 0 °C and P. = 101.325 kPa, respectively. At the reference conditions, specific internal energy, specific enthalpy, and specific entropy are defined as zero, i.e. Uo = h, = So = 0 at (To, Po) °C 25 КРа 101.325 300.000 m’kg 0.03 h kJ/kg kJ/kg kJ/kg-K 100 0.50 0.00 20.0 0.00 Determine the missing properties

Problem #3: Assume air is an ideal gas with variable specific heat, and that the reference temperature and pressure are T, = 0 °C and P. = 101.325 kPa, respectively. At the reference conditions, specific internal energy, specific enthalpy, and specific entropy are defined as zero, i.e. Uo = h, = So = 0 at (To, Po) °C 25 КРа 101.325 300.000 m’kg 0.03 h kJ/kg kJ/kg kJ/kg-K 100 0.50 0.00 20.0 0.00 Determine the missing properties

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

Related questions

Q: Draw Pv and Ts diagram of reversible isobaric process. Write the relationship between thermodynamic…

Q: Air at 20℃, 100 kPa is compressed in a piston/cylinder without any heat transfer to a pressure of…

Q: There is a rigid tank initially with water in a critical state, which after a heat transfer process…

Q: 4. Complete the table below. Show your solutions and draw the corresponding T-s diagram for each…

A: Pressure (kPa) Temperature (oC) Specific volume (m3/kg) Internal energy (kJ/kg) Enthalpy (kJ/kg)…

Q: 3. At 335 °C, a steam turbine receives 800 kPa of steam. Then expand to a pressure of 0.02 MPa in an…

Q: Temp °C Pressure Specific Quality x "SH Enthalpy Entropy kPa Volume k/kg k/K-kg 10 m²/kg 201 Satu…

Q: Water at 100 °C with a quality of 15% has its temperature raised 20 °C in a constant volume process.…

Q: Steam enters a nozzle at pressure of 1 MPa, temperature of 500 °C, and a velocity of 38 m/s and…

Q: 96 kPa and V, = 7.65 mº/min to p, 620 kPa, find th h 1 e change of entropy and the heat for (a)…

A: P1=96kPa P2=620kPa V1=7.65m3/min

Q: An electric resistance heater submerged in 4-kg water (T, = 20 °C, C, = 4.18 kJ/kg.K) is turned on…

A: The correct answer is 1.526 kJ/K

Q: Find enthalpy if 5kg of certain gas go through a reversible non flow that has constant pressure…

Q: Nitrogen (M=28.01 Ib/lbmol) gas flows in a convergent nozzle at 30 psia and 140 (°F) with negligible…

Q: (B) 0.56 m3 of air at a temperature of 250°C and a pressure of 6.5 bar expand according to the law…

A: Thermodynamics : It is a branch of science that deals with work, heat, and energy. Also, it studies…

Q: At the start of the compression process in the reciprocating compressor of refrigeration plant the…

A: Given data :- Start of compression = 1.5 bar PV1.2 = constant P2 = 6.5 bar Find :- @ change of…

Q: = 71°C with v₁ = 0.201 m³/kg. The gas v1 A piston-cylinder assembly holds 1.2 kg of air initially at…

A: First, we need to convert the temperatures from Celsius to Kelvin because the entropy change…

Q: 16. A perfect gas has a valuen of R = 58.8 ft-lb/lb-R and k = 1.26. IF 20 %3D BTU are added to 5 lb…

A: Given: R = 58.8 ft-lb/lb-R (1ft-lb/lb-R = 0.0054kJ/kgK) R = 58.8 × 0.0054 = 0.31752 kJ/kgK Heat…

Q: One-quarter Ibmol of oxygen gas (O₂) undergoes a process from p₁ = 20 lb/in², T₁ = 500°R to p2 = 150…

Q: A mass of 6 kg of air is compressed from 95 kPa, 38 0C to 620 kPa in a polytrophic process, PV1.3…

A: Given Data→ Mass of air m=6 kg Pressure and temperature at the inlet P1=95 KPaT1=38°C Pressure after…

Q: Q2: Steam at 7 bar, dryness fraction 0.96 is throttled down to 3.5 bar calculate the change of…

Q: Q1/A Steam turbine run with steam inters (30 bar 400°C to 4 bar) and then expanded isentropically.…

A: Given Data State 1: 30 bar,400°C Isentropic Expansion State 2: 4 bar

Q: Q17 An ideal gas (Cp = R and C₂ = R), undergoes the following mechanically reversible changes in…

A: The ratio of the specific heat capacity is,Draw the PV diagram for the given process.Note-The…

Q: One kg of air occupies 0.68 m at 400 °C and 28 Bar. Calculate the change in entropy when it expands…

Q: Calculate the change in the entropies of the system (AS,») and the surroundings (ASur), and the…

Q: A large tank contains air at 2.84 bar gauge pressure and 24°C temperature. The air flows from the…

Q: water at 100 kPa, 30 °C, enters a pump with a flow rate (m) of 18 kg/s with a velocity of 2 m/s. At…

Q: 200Kg/min superheated steam at 40 bar and 350C enters a turbine through a 7.5cm ID pipe. It exits at…

Q: Q1: A-For a reversible polytropic process prove the relation between heat supplied and input for a…

Q: Use only the MD below to solve this Item. Use it by plotting data and process to determine items…

A: Steam turbine plant Steam turbine works on the principle of Rankine cycle T-s diagram of the…

Q: Steam at a temperature of 250oC has a specific volume of 0.15436 m3/kg. What are the pressure,…

Q: There are required 2000 kW of compressor power to handle air adiabatically from 1 atmosphere, 27 °C,…

A: Introduction In this problem, we will calculate the compressor capacity for the isentropic process…

Q: Steam enters a well-insulated turbine at 3.5 MPa and T, °C with a velocity of 130 m/s. At the exit,…

Q: A container of constant volume contains 10 kg of air at 20.C temperature and 150 kPa pressure. Rough…

A: Initial mass is 10Kg TO find out the volume of the container V=mRTPV=10(0.287)(273+20)150V=5.606 m3…

Concept explainers

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

Question

100%

Problem #3: Assume air is an ideal gas with variable specific heat, and that the reference temperature
and pressure are T, = 0 °C and P. = 101.325 kPa, respectively. At the reference conditions, specific
internal energy, specific enthalpy, and specific entropy are defined as zero, ie. u, = ho = So = 0 at (To, Po)
P
kPa
101.325
m/kg
0.03
h
kJ/kg
°C
25
kJ/kg
kJ/kg-K
100
300.000
0.50
0.00
20.0
0.00
Determine the missing properties

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Solve it
Need in 20 mints Thanks
The subject is thermodynamics 2
Calculate the compressor work in kJ required to compress 1 kg of an ideal gas from an initial volume and pressure of 0.65m3 and 101.3kpa to a final pressure of 517kpa. Compression is with n=1.35. A. 133.6 B. 105.8 C. 148.3 D. 142.7
Q:: one kg of air initially at 8 bar and 380 K expands polytropically according to the law p.v12= constant till the pressure is reduced to one-fifth value. Calculate: 1. Work done 2. Heat interaction 3. Change in entropy
2.) There is 1.5 kgm of a gas where k = 1.3 and R = 0.38 kJ/kgm-K that undergoes an isochoric process from p1 = 0.552 MPa, t1 = 58.50C to p2 = 1.66 MPa. During the process, there %3D added 100 kJ of heat. Compute for the heat transferred, change of internal energy, and change of entropy.
Air as ideal gas in the closed system, find the change of entropy from the initial to the final state, in Btu/lb oR ( degree R ). T1 = 360 oF (degree F), P1 = 14.7 psia T2 = 540 oF (degree F), P2 = 58.8 psia
QL 0.03m* of air s initially at 206°C and 7 bar is expanded at constant pressure to 0.09m? the followed by a polytropic process with index 1.5. Finally, a constant temperature process i carried out to complete the cycle. Determine: (a) Sketch the processes on P-V, T-V, and T-S diagrams. (b) The change in entropy during each process. (
3) A cup of rather dilute hot tea initially at 140 degrees F is served to a customer at Howard Johnson's. Unfortunately, before they get around to drinking it, it has spontaneously cooled off to 200 0 100 degrees F. Calculate the change in this process. The temperature of the entropy of the universe for restaurant (the surroundings) is 70 degrees F. (DHD 2/6/22) Suppose that the heat has problem 3, in order to save the inside temperature is been turned off in the HoJo's in money in the cold winter months, and 32 degrees F. The hot tea cools from HOWARD 140 degrees F to 32 degrees F, and then freezes, making it JOHNSON'S impossible to drink. What is the change in entropy of the universe in this case? (DHD 2/6/22) LCE CREAM 28 FLAVORS Restaurant Return to problem 3. Suppose that our customer complains about the cold tea and is given a second cup of hot tea. Feeling especially hungry (for tea?) they mix the hot tea and the cold tea together so that they will have twice as much tea (albeit…
Q1/A Steam turbine run with steam inters (30 bar 400°C to 4 bar) and then expanded isentropically. Calculate the work done per unit mass flow of steam. Neglect changes as K.E and P.E. Note (h1 = 3230.9kJ/kg, h2=2750KJ/kg & m° = 1)
One cubic meter of oxygen at initial pressure of 1 bar and a temperature of17°C are compressed isentropically to a volume of 0.50m 3 . Use the specificheat at constant volume and pressure are 0.919 kJ/kgK and 0.659 kJ/kgK,respectively. determine the: b. the pressure, temperature, and volume after the process d. work nonflow and heat transferred