Nitrogen is cooled at a constant pressure of 1200 Pa from an initial specific volume of 1.80m³/kg to afinal specific volume of 0.75 m³/kg. If the mass of nitrogen (cp=1.0399 kJ/kg-K and k=1.399) undergoingthe process is 2.26kg, determine:a. The nonflow work, in kJb. The change in entropy, in kJ/KC.The change in enthalpy and internal energies, in kJ

GivenP=1200PaV1=1.80 m3/kgV2=0.75 m3/kgCp=1.0399 kJ/kgKk=1.399m=2.26kg

Nitrogen is cooled at a constant pressure of 1200 P final specific volume of 0.75 m³/kg. If the mass of nit the process is 2.26kg, determine: a. The nonflow work, in kJ b. The change in entropy, in kJ/K

Nitrogen is cooled at a constant pressure of 1200 P final specific volume of 0.75 m³/kg. If the mass of nit the process is 2.26kg, determine: a. The nonflow work, in kJ b. The change in entropy, in kJ/K

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: A 1500 kW electrical heater is used to heat 25 kg of water (cp=4.186 J/kgK) lin an insulated bucket,…

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

Q: Q25. 0.5 kg of air at pressure of 2000 kN/m2 occupies 0.1 m' and from this condition it is expanded…

Q: Number 3

A: To find change in enthalpy

Q: 1 kg of air is allowed to axpand reversibly in a Cylinder Sehind a piston in such away that the temp…

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

Q: team at a temperature of 250 degree celsius has a specific volume of 1.5436 meter cube/ kg. what are…

A: First, determine the specific volume of gas at the given temperature and considering dryness…

Q: Q2. A 0.8 m³ rigid tank contain carbon dioxide (CO₂) gas at 250K and 100 kPa. A 500W electric…

A: Note-As per policy only first three questions can be answered so resubmit for complete solution.At…

Q: Find the enthalpy of steam at 0.1975 MPa with specific internal energy of 2700 kJ/kg

Q: A perfect gas nas and pressure 0.8 bar and volume

A: Change in entropy: Entropy is the ratio of heat transfer (Q) to temperature (T). According to second…

Q: A certain fluid at 10 KPa is contained in a cylinder behind a piston. The initial volume being 0.5…

Q: 1 kg of ice from a freezer at -10◦C is placed in a bucket in the garden where the temperature is…

A: Question- 1 kg of ice from a freezer at -10◦C is placed in a bucket in the garden where the…

Q: Steam at 7 bar, dryness fraction 0.96, is throttled-down to 3.5 bar. Solve for the change of entropy…

Q: Five cubic meter of nitrogen are heated at constant volume so that the pressure changes from 276…

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: Helium expands polytropically through a gas turbine according to the process PV1339 = C. If the…

A: GIVEN DATA FOR POLYTROPIC PROCESS WORK TRANSFER W=25.96 MW POLYTROPIC INDEX n=1.339 WE HAVE TO FIND…

Q: mass flowrate Ibmis of water at 80 F and 70 pisa is mixed with 1 Ibm/s of saturated vapor water at…

A: The quality of stream at exit is 0.662. Therefore, option (c) is correct answer.

Q: Helium (1.9 kg) is being stored in a rigid tank at 21 deg C. The tank is set outside and the…

Q: 3) 2.4 kg of air at a temperature of 523K and a pressure of 650 kPa expand according to the rocesses…

A: P1 = 6.5 bar = . 65 Mpa T1 = 523 K R = 0.287 kJ/kg.K By ideal gas law equation at point 1 : -…

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

Q: The thermodynamic process the problem represents b. the pressure, temperature, and volume after the…

A: Given V1= 6 liters V1=0.006mt3 P1=100Kpa V2=2 liters=0.002mt3 T1=25C Problem represent Polytropic…

Q: A perfect gas has a mass 1.2 kg and pressure 0.8 bar and volume 0.5 m³. This gas is compressed and…

A: A perfect gas is a gas whose specific heats remain constant and does not change with temperature.…

Q: Calculate work done in polytroic process and the change entropy in each process. Take y = 1.4 and R…

Q: Water enters a pump as saturated liquid 50 kPa at a rate of 3.0 kg/s and exits with a pressure of 10…

Q: entropy : Air inside a cylinder has increased its pressure from 100 KPa to 200 KPa. Evaluate the…

Q: 3kg of Co2 expanded in a stationary piston cylinder through a polytropic process from 30 degree…

A: T1= 30+273= 303K, m=3kgP1=250KPa, P2=100KPan=1.45T2T1= 1002501.45-11.45=228.014KTotal Work, W=…

Q: nd k = 1.26. If 20 Btu are added to 5 lb of this gas at constant volume when the initial temperature…

A: Given: R=58.8 ft-lb/lb-0R k=1.26 Q=20 Btu m=5 lb Process- constant volume process Initital…

Q: Saturated steam has a pressure 2.356 Mpa. What are the temperature, specific internal energy,…

Q: 10. A stream of 2 kg/s of CH, at 1.6 bar and and 140 K is compressed adiabatically to 50 bar and 400…

A: Given: The mass flow rate of methane, m = 2 kg/s The initial pressure of methane, P1 = 1.6 bar The…

Q: Four kilogram of steam is initially at 1MPa and x=40% inside the piston cylinder. There is a 30C…

Q: 20 g copper at 40 degree celsius is dropped into a constant volume calorimeter containing 100 g…

Q: 2.0 1g of air is coumpressed accurding to the law pv comtant froun 1.03 bar and 15 C to 16.45 bar.…

Q: Two tanks connected with 2. each other as shown. The first one has 2 kg of water at P=200 kPa, V, =…

Q: ka of aY is allowVed to exppand that the temperature vemcins Sehind a piston in such away constant…

A: Thermodynamics : It is a branch of science which deals with work, heat & energy. Also, it…

Q: Find the mass in metric tons per day of at -5 °C that would theoretically made in a refrigerating…

Q: enthalphy of 3015.2 Kj/kg undergoes a constant pressure at 1 mpa until the enthalphy becomes 2100…

Q: Pressure remains constant at 689.5 kPa while the volume changes from 0.567 m3 to 0.283 m3. Find the…

Q: Steam at a temperature of 235.5C has a specific volume of 0.17541 m3/kg. What are the pressure,…

Q: 74 kg of water is heated from 61°C to 100 C. What is the change in entropy? The specific heat of…

A: GIVEN DATA MASS OF WATER m=74kg Temprature T1 =61'C , T2=100'C Specific heat of water C=10 cal/kg.K…

Q: One kg water at velocity 12.5 m/s and 30oC enters a 2.54 cm diameter horizontal pipe where there is…

Q: Work done by a substance in reversible non flow manner during which 32KJ are added, the pressure…

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

Nitrogen is cooled at a constant pressure of 1200 Pa from an initial specific volume of 1.80m³/kg to a
final specific volume of 0.75 m³/kg. If the mass of nitrogen (cp=1.0399 kJ/kg-K and k=1.399) undergoing
the process is 2.26kg, determine:
a. The nonflow work, in kJ
b. The change in entropy, in kJ/K
C.
The change in enthalpy and internal energies, in kJ

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps

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

o At the inlet to a certain nozzle, the enthalpy of the gas is 3000 kJ/kg and velocity is negligible. At the discharge end of the nozzle, the enthalpy is 2762 kJ/kg. The nozzle is horizontal and flow through the nozzle is adiabatic find the velocity of gas at the nozzle exit.
A vessel contains 2 kg of water at 80 ºC. Determine specific and total internal energy,specific and total enthalpy, and specific and total entropy. Consider different cases/states:I. P = Psat and x = 0II. P = Psat and x = 0.3III. P = Psat and x = 1Plot these states on the Pv diagram and label magnitudes. Refer property tables. Explain with clear writing and units and diagram Also if you use tables and equation mention it with explanation
Calculate the work (in kJ) when substance initially at 218 kPa, 9 m³ is expanded to 61 kPa in a process where PV = Const.
A 20 kg/s steam enters a turbine at an initial enthalpy of 2456kJ/kg and exits at 1987 kJ/kg. If the kinetic energy of the steam decreases by 10 kJ/s, how much is the turbine work? Draw a schematic diagram,andthen plot the state/s and process, whichever is applicable in a t-sdiagram
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.
Phy
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
An 8 kW compressor blows the air at 22 C and 100 kPa to 1600 kPa. reversibly to the pressure (P v n = constant). In addition, heat transfer to the surrounding environment at 22 °C. is happening. (n = 1.33) a) Find the compressor work expression (integrating) according to the Pvn interchange and the result is n, R, T1, Express it in terms of P1, P2. b) Find the mass flow and outlet temperature of the air. c) Find the total irreversibility by applying the exergy balance. d) Find the isentropic efficiency of the compressor (k=1.4). e) In case of using two compressors with intercooler, the intermediate pressure (Px) is in terms of P1 and P2. take the derivative and find the total compressor power in this case and add it to a single compressor. Determine your gain in kW according to
i need the answer quickly
B-Prove that the entropy is a property
A spring-loaded piston-cylinder device contains of m=1kg carbon dioxide. Initially, the spring has no force on the piston and , , . Heat is transferred to the gas, causing the piston to rise and to compress the spring. At the state 2, , . The gas is an ideal gas. (7)How to calculate the total boundary work ?_____ A. B. C. D.