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Consider two subsystem 1 and 2 containing same fluid and having same mass m; but at Temperature T1 and T2(T1 > T2) enclosed in an adiabatic enclosure separate by a partition, if the partition is removed and the fluids are allowed to mix. The entropy change of process is
- a)
- b)
- c)
- d)
Correct answer is option 'B'. Can you explain this answer?
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Consider two subsystem 1 and 2 containing same fluid and having same m...
Subsystem 1 having a fluid of mass m1 specific heat c1 and temperature t1 and subsystem 2 consisting of a fluid of mass m2, specific heat c2, and temperature t2, comprise a composite system in an adiabatic enclosure figure. When the partition is removed, the two fluids mix together, and at equilibrium let tf be the final temperature, and t2 < tf < t1 Since energy interaction is exclusively confined to the two fluids, the system being isolated
∴
Entropy change for the fluid in subsystem1,
This will be negative, since T1 > Tf
Entropy change for the fluid in subsystem 2
This will be positive, since T2 < Tf
ΔSuniv will be positive definite, and the mixing process is irreversible.
Although the mixing process is irreversible, to evaluate the entropy change for the subsystem, the irreversible path was replaced by a reversible path on which the integration was performed.
∴
Entropy change for the fluid in subsystem1,
This will be negative, since T1 > Tf
Entropy change for the fluid in subsystem 2
This will be positive, since T2 < Tf
ΔSuniv will be positive definite, and the mixing process is irreversible.
Although the mixing process is irreversible, to evaluate the entropy change for the subsystem, the irreversible path was replaced by a reversible path on which the integration was performed.
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Consider two subsystem 1 and 2 containing same fluid and having same mass m; but at Temperature T1 and T2(T1> T2) enclosed in an adiabatic enclosure separate by a partition, if the partition is removed and the fluids are allowed to mix. The entropy change of process isa)b)c)d)Correct answer is option 'B'. Can you explain this answer?
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Consider two subsystem 1 and 2 containing same fluid and having same mass m; but at Temperature T1 and T2(T1> T2) enclosed in an adiabatic enclosure separate by a partition, if the partition is removed and the fluids are allowed to mix. The entropy change of process isa)b)c)d)Correct answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Consider two subsystem 1 and 2 containing same fluid and having same mass m; but at Temperature T1 and T2(T1> T2) enclosed in an adiabatic enclosure separate by a partition, if the partition is removed and the fluids are allowed to mix. The entropy change of process isa)b)c)d)Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider two subsystem 1 and 2 containing same fluid and having same mass m; but at Temperature T1 and T2(T1> T2) enclosed in an adiabatic enclosure separate by a partition, if the partition is removed and the fluids are allowed to mix. The entropy change of process isa)b)c)d)Correct answer is option 'B'. Can you explain this answer?.
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