A frictionless piston-cylinder device contains 4 kg of nitrogen at 100 kPa and 300 K. Nitrogen is now compressed slowly according to the relation PV* =constant until it reaches a final temperature of 340 K. The work (kJ) input during this process is 4

A frictionless piston-cylinder device contains 4 kg of nitrogen at 100 kPa and 300 K. Nitrogen is now compressed slowly according to the relation PV* =constant until it reaches a final temperature of 340 K. The work (kJ) input during this process is 4

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: Q/ Air is contained in a cylinder fitted with a frictionless piston. Initially the cylinder contains…

A: Write the relation between pressure and temperature in a polytropic process. P2P1=T2T1nn-1 Here, n…

Q: How does useful work differ from actual work? For what kinds of systems are these two identical?

A: In thermodynamics the useful work is calculated as : Thus, we can say that when the if the…

Q: A piston–cylinder device initially contains 1.4 kg of refrigerant-134a at 100 kPa and 20°C. Heat is…

A: Given data

Q: expands at constant pressure of 172 kPa in piston-cylinder system from a temperature of 32 oC to a…

A: Given Data⇒ Mass of gas(m)=2 kg Constant pressure process P=172 KPa Initial temperature…

Q: A gas expands in a cylinder from 500 kPa and 0.1 m3 to a final volume of 0.5 m3. Determine the work…

Q: Steam enters a nozzle at 400°C and 800 kPa with a velocity of 10 m/s, and leaves at 300°C and 200…

A: Write the properties of steam at 800 kPa and 400°C. Write the properties of steam at 200 kPa and…

Q: A frictionless piston-cylinder device contains 5 kg of nitrogen at 100 kPa and 250 K. Nitrogen is…

A: Given data:

Q: (4) A mass of 3.25 kg of R-134a fill a piston-cylinder device with and initial volume of 0.246 m³ at…

A: Given Data m=3.25 kg V1=0.246 m3 T1=-10.09°C T2=50 °C

Q: Q1/ A frictionless piston–cylinder device initially contains 200 L of saturated liquid…

A: Given: Initial volume (V)=200L or 200×10-3m3Pressure P=900kPaFinal Temperature T2=70°C

Q: An insulated piston–cylinder device contains 0.05 m3 of saturated refrigerant- 134a vapor at 0.8-MPa…

A: Given data: The refrigerant inside the cylinder is R-134a The volume present inside the cylinder is…

Q: Steam at 75 kPa and 8 percent quality is contained in a spring-loaded piston–cylinder device, with…

Q: A piston–cylinder device initially contains 15 ft3 of helium gas at 25 psia and 70°F. Helium is now…

A: Given data: Initial volume, V1 = 15 ft3 Initial pressure, P1 = 25 psia Initial temperature, T1 =…

Q: An insulated piston–cylinder device contains 5 L of saturated liquid water at a constant pressure of…

A: Given: The volume of water, V = 5 L The pressure of water, P = 150 kPa The energy required to…

Q: Steam flows steadily through a turbine at a rate of 45,000 lbm/h, entering at 1000 psia and 900°F…

A: Given data as per question Flow rate of steam =45000 lbm/h Entering pressure = 1000 psia Entering…

Q: A piston–cylinder device initially contains 0.6 kg of steam with a volume of 0.1 m3 . The mass of…

A: Given Data: Initial mass of steam is m1 = 0.6 kg. Initial volume of steam is V1 = 0.1 m3. Initial…

Q: Steam enters a nozzle at 400°C and 800 kPa with a velocity of 10 m/s, and leaves at 3008C and 200…

Q: ) A piston – cylinder device initially contains 1 kg of saturated water vapor at 0.2 MPa. Water is…

Q: Steam is condensed in a closed system at a constant pressure of 75 kPa from a saturated vapor to a…

A: Given data as per question Pressure of the condensed steam = 75 kpa thermal energy reservoir…

Q: During an expansion process, the pressure of a gas changes from 15 to 100 psia according to the…

A: The initial pressure is given as, Pi=15 psia The initial volume is given as, Vi=7 ft3 The…

Q: Air enters a 36-cm diameter pipe steadily at 400 kPa and 40°C with a velocity of 8 m/s. Air is…

Q: A piston-cylinder device initially contains 0.4 m³ of air at 100 kPa and 80°C. The air is now…

Q: An insulated piston–cylinder device contains 0.05 m3 of saturated refrigerant- 134a vapor at 0.8-MPa…

A: Givan data, P1 = 0.8 MPa P2 = 0.4 MPa V1 = 0.05 m3 It is given in question that the expansion…

Q: In a piston cylinder device, by means of a polytropic process, nitrogen is expanded with an n of…

Q: A hair dryer is basically a duct in which a few layers of electric resistors are placed. A small fan…

A: P1 = 100 kPa T1 = 295 K Q ˙= 1200 J/s T2 = 320 K A2 = 60 cm2 Control volume of a given problem is…

Q: A hair dryer is basically a duct in which a few layers of electric resistors are placed. A small fan…

A: Given Data:- P =1200w P1=100kPa T1 =22°C…

Q: Liquid water at 120 kPa enters a 7-kW pump where its pressure is raised to 6.2 MPa. If the elevation…

A: Given Data Power = 7000 W P1= 120 KPa. P2=6200 KPa v= 0.001 m3/Kg Elevation = 10m

Q: A frictionless piston–cylinder device contains 10 lbm of steam at 60 psia and 320°F. Heat is now…

A: Given data: mass of steam (m) = 10 lbm Pressure (P) = 60 psia initial Temperature (Ti) = 320oF final…

Q: A 5-ft3 rigid tank initially contains refrigerant-134a at 60 psia and 100 percent quality. The tank…

A: The properties of refrigerant 134a at 60 psia and 100 percent quality are: The enthalpy of…

Q: A piston-cylinder device initially contains 1.4 kg of refrigerant-134a at 100 kPa and 20oC. Heat is…

Q: Steam enters a turbine at 6 MPa and 450°C at a rate of 33 kg/s and exits at 50 kPa as saturated…

Q: A piston-cylinder device initially contains 0.802 m³ of air at 108 kPa and 94°C. The air is now…

A: Given data: V1=0.802 m3P1=108 kPaT1=94°CV2=0.247 m3 Need to determine the work done during the…

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

A: Given, Before Heater is on, P1 = 100 kPa T1 = 250 K V1 = 0.8 m3 After Heater is on, P2 = 175 kPa…

Q: Nitrogen gas is compressed from 80 kPa and 27°C to 480 kPa by a 10-kW compressor. Determine the mass…

A: Given: The initial pressure of the nitrogen gas is P1=80 kPa. The final pressure of the nitrogen gas…

Q: 5. During some actual expansion and compression processes in piston-cylinder devices, the gases have…

Q: 3. A gas contained in a piston cylinder. The gas expands slowly from an initial pressure and volume…

Q: A piston–cylinder device initially contains 0.6 kg of steam with a volume of 0.1 m3 . The mass of…

A: Given, a piston- cylinder device with the following data. Initial Volume of steam, V1=0.1m3 Mass of…

Q: A piston–cylinder device initially contains 1.4 kg of refrigerant-134a at 100 kPa and 20°C. Heat is…

A: Given data m=1.4 kgP1=100 kPaT1=20°cP2=120 KPa

Q: A piston–cylinder device contains 15 kg of air at 599 kPa and 38oC. During a quasi-equilibium…

A: Given conditions , Mass of piston cylinder device = 15 kg Temperature = 38oC Pressure = 599 kPa…

Q: 0.018 m gas at a pressure of 3.070 Kpa expands to a pressure of 0.00207 bar according to the law…

Q: Determine the work required (in kJ/kg) for a pump that is used to increase the pressure of a liquid…

A: Given: P1 = 100 kPa P2 = 1500 kPa , v = 0.001031 m3/kg Work required for pump to increase the…

Q: A rigid tank contains air at 500 kPa and 150°C. AS a result of heat transfer to the surroundings,…

A: Pressure P1 = 500 kpa Pressure P2 = 400 kpa Temperature T1 = 150 C Temperature T2 = 65 C

Q: Steam enters a nozzle at 400°C and 800 kPa with a velocity of 10 m/s, and leaves at 375°C and 400…

A: Solution:T1 = 400°C , P1 = 800 kPa , V1 = 10 m/sT2 = 375°C , P2 = 400 kPa , Q˙ = -25 kwA1 = 800…

Q: Consider an insulated system with piston and cylinder arrangement in which Nitrogen gas is present.…

A: Given Data ∆U=1000 kJ Q=0 (insulated system)

Q: The volume of 1 kg of helium in a piston–cylinder device is initially 5 m3 . Now helium is…

A: Ideal Gas Equation is given by PV=mRT P is pressure V is Volume M is mass of the Gas R is Universal…

Q: A room contains 60 kg of air at 100 kPa and 15°C. The room has a 250-W refrigerator (the…

Q: A 0.8-m3 rigid tank contains nitrogen gas at 600 ne gas is compressed isothermally to a volume of…

A: Given, Initial pressure of nitrogen P1=600kPa Initial volume of nitrogenV1=0.8m3 Initial temperature…

Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

A frictionless piston-cylinder device contains 4 kg
of nitrogen at 100 kPa and 300 K. Nitrogen is now
compressed slowly according to the relation
PV* =constant until it reaches a final temperature of
.4
340 K. The work (kJ) input during this process is
Select one:
83.9
89.3
O 118.7
115.5
Kww E
ww
DYNAMICS
EMODYNAMICS
FOR FIRE
THERMODYNAMCS

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

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 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

A piston–cylinder device contains 0.85 kg of refrigerant134a at –10°C. The piston that is free to move has a mass of 12 kg and a diameter of 25 cm. The local atmospheric pressure is 88 kPa. Now, heat is transferred to refrigerant-134a until the temperature is 15°C. Determine (a) the final pressure, (b) the change in the volume of the cylinder, and (c) the change in the enthalpy of the refrigerant-134a.
A gas initially at 15 psia and 2 ft3 undergoes a process to 90 psia and 0.60 ft3, during which the enthalpyincreases by 15.5 BTU; Cv=2.44 BTU/lbm.R. Determine a) Change in internal energy b) Cp and c) R.
26. A piston-cylinder device initially contains 0.821m3 of air at 112 kPa and 81°C. The air is now compressed to 0.354 m3 in such a way that the temperature inside the cylinder remains constant. Determine the work done during the process in kJ.
) A piston – cylinder device initially contains 1 kg of saturated water vapor at 0.2 MPa. Water is now heated at a constant pressure and heat input during the process is 570 kJ. The final temperature of the water is 400°C. If the surroundings are at 100 kPa and 20°C, determine,d) irreversibilities.
Q9/ A piston-cylinder device contains 0.85 kg of refrigerant- 134a at 10°C. The piston that is free to move has a mass of 12 kg and a diameter of 25 cm. The local atmospheric pressure is 88 kPa. Now, heat is transferred to refrigerant-134a until the temperature is 15°C. Determine (a) the final pressure, (b) the change in the volume of the cylinder, and (e) the change in the enthalpy of the refrigerant-134a.
In a piston cylinder device, by means of a polytropic process, nitrogen is expanded with an n of 1.25, from 2 MPa and 1200 K to 200 kPa. Determine the amount of work produced
Refrigerant-134a at 320 kPa and 40°C undergoes an isothermal process in a closed system until its quality is 45 percent. On a per-unit-mass basis, determine how much work and heat transfer are required.
A piston-cylinder device contains 50 kg of water at 250 kPa and 25°C. The cross-sectional area of the plunger is 0.1 m2. Heat is transferred to the water, causing some of it to evaporate and expand; When the volume reaches 0.2 m3, the piston hits a linear spring whose spring constant is 100 kN/m. More heat is transferred to the water until the plunger rises a further 20 cm. Determine a) the final pressure and temperature and b) the work done during this process. Also show the process on a P-V diagram.
Which of two gases—neon or air—produces more work when expanded from P1 to P2 in a closed-system polytropic process with n = 1.2?
Given problem: The piston/cylinder contains carbon dioxide at 300 kPa, with a volume of 0.2 m3 and at 100°C. Mass is added at such that the gas compresses with PV1.2 = constant to a final temperature of 200°C. Determine the work done during the process. Choices: a.) -75 kJ b.) -80.4 kJ c.) -90.4 kJ d.) -70.4 kJ
A 0.8-m3 insulated rigid tank contains 1.54 kg of carbon dioxide at 100 kPa. Now paddle-wheel work is done on the system until the pressure in the tank rises to 135 kPa. Determine the minimum paddle-wheel work with which this process (between the same end states) could be accomplished. Take T0 = 298 K.
NOTE: Show your step-by-step solution Determine the work done, W, by a 1 kg fluid system. Do it to expand slowly within a piston-cylinder arrangement from an initial pressure and volume of 80 kPa and 1 m3 respectively to a final volume of 4 m3 in accordance with the following: P = C ; PV = C ; PV2 = C