A piston-cylinder device (see Figure 1) is in a heated environment (its surroundings), which is at a temperature of 177°C and able to transfer heat to the device. The device contains2 kg of water which is initially at 101.42 kPa with the quality (dryness fraction) of 0.4. Heat is added to the water from the surroundings, and the water expands isothermally in aquasi-equilibrium manner until the final volume is 4.017 m3. During the expansion process, the specific work done is 171.4 kJ/kg. It can be assumed that the piston and cylinder isweightless, and that kinetic and potential energy changes are negligible. In answering the various questions, you should choose the closest answer which may be slightly differentfrom your own answer because of rounding errors or differences .Surroundings (at temperature of 177° C)Water:Initially at101.42kPa andx=0.4CylinderFigure 1What is specific heat transfer in kJ/kg from the system to the surrounding in the process? .a. 712.37, negativeb. 1424.74, negativec. 1424.74, positived. 712.37, positivea .- n - os

Answered: Image /qna-images/answer/14ce8475-e527-4558-b7e1-747e6469e95a.jpg

Answered: What is specific heat transfer in kJ/kg…

Engineering

Mechanical Engineering

What is specific heat transfer in kJ/kg from the system to the surrounding in the process? .

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: Water at a temperature of 400oF has a quality of 0.7. The internal energy of the water is ________…

A: given temperature ofwater , T=400oF=204.444oCquality, x=0.7

Q: Q2 / Heat is transferred from a tank of water in a refrigerator at(OC) degrees to a tank of boiling…

A: GivenT1=0oC=273KT2=100oC=373KQ2=2254 kJ

Q: 21 a 1550-kg car moving at a constant speed of (900 km/hr) Its takes (16,000W)to keep it on alevel…

A: Given data: Mass of the car = 1550 kg Speed of the car (v) = 900 km/h…

Q: For a rigid tank with a volume of contains air at , . The tank is heated to , . The specific…

A: Givenrigid tankV=3m3T1=27oCP1=200kPaT2=102oCP2=250 kPaCv=0.718 kJ/kgKCp=1.005 kJ/kgK

Q: Solution (1) Fill in the State Table (all pressures in Pascals, all volumes in cubic meters, all…

Q: Explain The Symbol ( M10 X 0.5- LH)

A: given : M10 X 0.5- LH

Q: What is the mass of air in a 4mx5mx3m room that is at 300K and 101 kPa? A. 70.4 kg B. 95.3 kg C. 145…

Q: differentiate between Open Feedwater Heaters and Closed Feedwater Heater with given 1 application on…

Q: Calculate the work done by a system in which 1 kgmole of water completely evaporates at 100°C and 1…

A: Givenwater mass =1 kg mole of waterT=100oCP=1atm=101.325 kPa

Q: What is Coefficient of Performance (COP)? Also differentiate between COP and Efficiency?

A: Coefficient of Performance is ratio of desired effect to the input work. It is also called as…

Q: GIVE AN EXAMPLE OF HOW TO ENERGY TRANSFER BY HEAT?

A: Let us consider example of Internal combustion(IC) engine fuels. In IC engines, fuels (gasoline or…

Q: igeration is refrigera L0.P. if (i) th constant pre

A: C . O . P of the system C .O . P = h1 - h6h2 - h1 Enthalpy h1 = 180.88 KJ/kg As the…

Q: Which is correct for closed system Select one: а. Energy Out Mass in System Mass Out Syster Boundary…

Q: 1. Calculate the change in energy for the tollowing processes. Identify it the process is…

A: A) Given, Q=35JWD=-84KJ To calculate, Change in energy From the first law of thermodynamics,…

Q: What happened to the surface tension of liquid when the temperature increase ?

A: The surface tension is depends upon the intermolecular force.

Q: 3 kg of soup at 90°C is cooled down with 2 kg of water at 5°C. cp of the water is 4180 J/Kg*K and…

Q: 3- The system has a movable piston. If whole air and CO2 was considered as a system (whole tank) a-…

A: Giventhermodynamic system as shown below

Q: 1. Heat added to a 0.51m³ of air at constant pressure which results to a temperature increase of…

A: Note: kindly post different questions seperately, we experts can solve one question at a time,…

Q: Entropy is energy that has been

A: Measure of Disorder of a process is known as Entropy. Entropy is point function. Energy (heat)…

Q: have decided now that quarantine is about over to take a trip to Hawaii. You decide to rent a small…

A: Given length and width of the windows l×b=9×14number of windows…

Q: Aang and Katara was enjoying an afternoon snack in an igloo resort where the room temperature is…

Q: If the work done during adiabatic process is 5 kl, then its change in internal energy is O A. 256 kJ…

A: We have to determine change in internal energy

Q: Derive the relation between system approach and control volume approach.

A: Control volume approach is accurate for any flow distribution but is often based on 1 dimensional…

Q: A gas has an internal energy equal to 10000 J. After this process, we have 1000 J of heat absorbed…

A: Given, U1=10000 J Q=1000 J (Positive, because heat is transferred to the system) W=1500 J (Positive,…

Q: A piston-cylinder system contains an ideal gas. The initial conditions are T₁, P, and V. The system…

Q: n wall then the work done by force on wall

A: given: when a force is applied on wall then the work done by force on wall is?

Q: What does the Property process include exactly?

Q: 110 joule of heat is added to a gaseous system, whose internal energy is 40 J. Then the amount of…

Q: A piston-cylinder assembly initially contains B g of saturated water vapor at A kPa pressure. Next,…

Q: A conference hall is to be i at 24 C dry bulb and 60 %RH. The estimated cooling loads are 75 tons…

A: Given:Inside hall air condition,=24oC dry bulb and 60% RHSensible load, QS=75 tons=75*3.52=264 kW…

Q: State 1 1234 Pressure P (MPa) 0.14 0.80 0.80 0.14 Temperature T("C) -10 Specific volume v (m3/kg)…

A: From the table in the question given pressures for the refrigerant R134aThe temperature is the…

Q: Most of the heat in waste heat boiler is absorbed by steam at

A: in the boiler system,flue gas exits the boiler and after that it enters an economizer.

Q: Briefly discuss the effect of the property below in relation to SENSIBLE HEATNG process. a) What…

Q: T/F: The latent heat of vaporization is the energy required to change the state without changing the…

A: We need to explain The statement The latent heat of vaporization is the energy required to change…

Q: How much heat in Btu must be transferred to 42lb of air to increase the temperature by 250 0F at…

A: Given:- Mass (m) = 42 lb Temperature change (∆T) = 250 °F Process : Constant Pressure Process For…

Q: When heat energy transfers through a solid, what is it called?

A: Convection : This is a kind of heat transfer through fluid (liquids or gases) due to movement of…

Q: Come up with one problem related to energy balance for open system?

Q: drw Jetticron -02 BSME -01 of duia arrange work in 227°C

Q: Draw a heat transfer diagram showing the heat flow (where q is going) when you use ice pack on an…

A: Heat transfer is a simultaneous phenomenon where vibrating atoms or molecules move from a…

Q: A fan moves air at a CFM of 867. It's motor has a 16:1 ratio. How many BTU/hr are given off by the…

A: Given CFM = 867 To find Air flow in BTU/hr

Q: 3. Steam enters a turbine with an enthalpy of 1292 Btu/lb and leaves with an enthalpy of 1098…

Concept explainers

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.

Question

A piston-cylinder device (see Figure 1) is in a heated environment (its surroundings), which is at a temperature of 177°C and able to transfer heat to the device. The device contains
2 kg of water which is initially at 101.42 kPa with the quality (dryness fraction) of 0.4. Heat is added to the water from the surroundings, and the water expands isothermally in a
quasi-equilibrium manner until the final volume is 4.017 m3. During the expansion process, the specific work done is 171.4 kJ/kg. It can be assumed that the piston and cylinder is
weightless, and that kinetic and potential energy changes are negligible. In answering the various questions, you should choose the closest answer which may be slightly different
from your own answer because of rounding errors or differences .
Surroundings (at temperature of 177° C)
Water:
Initially at
101.42
kPa and
x=0.4
Cylinder
Figure 1
What is specific heat transfer in kJ/kg from the system to the surrounding in the process? .
a. 712.37, negative
b. 1424.74, negative
c. 1424.74, positive
d. 712.37, positive
a .- n - os

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 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

Moving to another question will save this res Question 10 The static temperature of a moving fluid is greater than stagnation pressure equals to stagnation temperature greater than stagnation temperature smaller thag stagnation temperature AMoving to another question will save this respon
I want to solve Bart d and e
A gas furnace has an efficiency of 75%. How many BTU will itproduce from 1000 BTU of natural gas.
P.4 As an example of a system, consider a water heater, a. What is in the system? b. What is outside the system? c. Is the system open or closed?
I need answer within 20 minutes please please with my best wishes
heat and mass transfer means
As more heat is transferred, part of the saturated liquid vaporizes (saturated liquid–vapor mixture).
A) Steam enters a turbine at a pressure of 30 bars, temperature of 400 degrees Celsius and exits at a pressure of 1bar. The turbine is isentropic, how much power is produced per unit mass flow rate, w. Their is no change in kinetic or potential energy and no heat transfer. Answer in kJ/kg B) Steam enters a turbine at a pressure of 30 bars, temperature of 400 degrees celsius and exits at a pressure of 1bar. If the turbine is operating at 95% isentropic efficiency, how much power is being produced per unit mass flow rate, w. Their is no change in kinetic or potential energy and no heat transfer. Answer in kJ/kg C) Steam enters a turbine at a pressure of 30 bars, temperature of 400 degrees celsius and exits at a pressure of 1 bar. If the turbine at 95% isentropic efficiency, what is the quality of the steam exiting the turbine? Their is no change in kinetic or potential energy and no heat transfer.
100kg of water at 75C and 1 bar is heated in a boiler to superheated steam at 5 bar and 350C. Calculate the change in internal energy O a. 200,100 kJ/s b. 98,221 kJ/s Oc. 67,763 kJ/s d. 256,910 kJ/s Clear my choice
The temperature inside the piston-cylinder device is 400 C and the fluid is refrigerant R-134a. Can we determine its internal energy if the fluid is at saturated vapor state? A)no B)yes
2 lbm/s of ice at -30F is converted into steam at300F. Determine the followinga) The total amount of heat in kW needed in theconversion.b) If the heated efficiency is 90%, what is thepower input of the heater in CHU/hr and kgf-m/s?