ErV38B/s 7. NPI A O p t:EYCh.5.pdf >14THERMODYNAMICSSupplementary Problems 11. Two tanks are connected by a valve. Tank A contains 2 kg of carbonmonoxide gas at 77°C and 0.7 bar. Tank B holds 8 kg of the same gasat 27°C and 1.2 bar. Then the valve is opened and the gases are allowedto mix while receiving energy via heat transfer from the surrounding.The final equilibrium temperature is found to be 42°C.Determine (a) the final pressure (b) the amount of heat transfer. Alsostate your assumption.+37.25 kJ][P?=105 kPa, Q =2. A piston cylinder device contains 0.2 kg of water initially at 800 kPaand 0.06 m 3. Now 200 kJ of heat is transferred to the water while itspressure is held constant. Determine the final temperature of the water.Also, show the process on a T-V diagram with respect to saturationlines.[ 721.1°C]15THERMODYNAMICSSupplementary Problems 13. A piston-cylinder device contains 6 kg of refrigerant-134a at 800 kPaand 50°C. The refrigerant is now cooled at constant pressure until itexist as a liquid at 24 C. Show the process on T-v diagram anddetermine the heat loss from the system. State any assumption made.[1210.26WD.5 m rigid tank contains refrigerant-134a initially at 200 kPa and 40percent quality. Heat is now transferred to the refrigerant until thepressure reaches 800 kPa. Determine (a) the mass of the refrigerant inthe tank and (b) the amount of heat transferred. Also, show the processon a P-v diagram with respect to saturation lines.4.[12.3 kg, 2956.25. Al insulated tank is divided into two parts by a partition. One part ofthe tank contains 6 kg of an ideal gas at 50°C and 800 kPa while the otherpart is evacuated. The partition is now removed, and the gas expands tofill the entire tank. Determine the final temperature and the pressure inthe tank.[50°C, 400 kPa]16THERMODYNAMICSClosed System First Law of a Cycle* Some thermodynamic cycle composes of processes in whichthe working fluid undergoes a series of state changes such thatthe final and initial states are identical.* For such system the change in internal energy of theuorline fA..di nn

Note: Since you have asked multiple question, we will solve the first question for you. If you want…

1. Two tanks are connected by a valve. Tank A contains 2 kg of carbon monoxide gas at 77°C and 0.7 bar. Tank B holds 8 kg of the same gas at 27°C and 1.2 bar. Then the valve is opened and the gases are allowed to mix while receiving energy via heat transfer from the surrounding. The final equilibrium temperature is found to be 42°C. Determine (a) the final pressure (b) the amount of heat transfer. Also state your assumption. +37.25 kJ] [P=105 kPa, Q =

1. Two tanks are connected by a valve. Tank A contains 2 kg of carbon monoxide gas at 77°C and 0.7 bar. Tank B holds 8 kg of the same gas at 27°C and 1.2 bar. Then the valve is opened and the gases are allowed to mix while receiving energy via heat transfer from the surrounding. The final equilibrium temperature is found to be 42°C. Determine (a) the final pressure (b) the amount of heat transfer. Also state your assumption. +37.25 kJ] [P=105 kPa, Q =

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

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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

ErV
38
B/s 7. N
PI A O p t:EY
Ch.5.pdf >
14
THERMODYNAMICS
Supplementary Problems 1
1. Two tanks are connected by a valve. Tank A contains 2 kg of carbon
monoxide gas at 77°C and 0.7 bar. Tank B holds 8 kg of the same gas
at 27°C and 1.2 bar. Then the valve is opened and the gases are allowed
to mix while receiving energy via heat transfer from the surrounding.
The final equilibrium temperature is found to be 42°C.
Determine (a) the final pressure (b) the amount of heat transfer. Also
state your assumption.
+37.25 kJ]
[P?=105 kPa, Q =
2. A piston cylinder device contains 0.2 kg of water initially at 800 kPa
and 0.06 m 3. Now 200 kJ of heat is transferred to the water while its
pressure is held constant. Determine the final temperature of the water.
Also, show the process on a T-V diagram with respect to saturation
lines.
[ 721.1°C]
15
THERMODYNAMICS
Supplementary Problems 1
3. A piston-cylinder device contains 6 kg of refrigerant-134a at 800 kPa
and 50°C. The refrigerant is now cooled at constant pressure until it
exist as a liquid at 24 C. Show the process on T-v diagram and
determine the heat loss from the system. State any assumption made.
[1210.26
WD.5 m rigid tank contains refrigerant-134a initially at 200 kPa and 40
percent quality. Heat is now transferred to the refrigerant until the
pressure reaches 800 kPa. Determine (a) the mass of the refrigerant in
the tank and (b) the amount of heat transferred. Also, show the process
on a P-v diagram with respect to saturation lines.
4.
[12.3 kg, 2956.2
5. Al insulated tank is divided into two parts by a partition. One part of
the tank contains 6 kg of an ideal gas at 50°C and 800 kPa while the other
part is evacuated. The partition is now removed, and the gas expands to
fill the entire tank. Determine the final temperature and the pressure in
the tank.
[50°C, 400 kPa]
16
THERMODYNAMICS
Closed System First Law of a Cycle
* Some thermodynamic cycle composes of processes in which
the working fluid undergoes a series of state changes such that
the final and initial states are identical.
* For such system the change in internal energy of the
uorline fA..di nn

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