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Isentropic flow is
  • a)
    Irreversible adiabatic flow
  • b)
    Reversible adiabatic flow
  • c)
    Ideal fluid flow
  • d)
    Frictionless reversible flow
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Isentropic flow isa)Irreversible adiabatic flowb)Reversible adiabatic...
The second law of thermodynamics states that,
where δQ is the amount of energy the system gains by heating, T is the temperature of the system, and dS is the change in entropy. The equality sign will hold for a reversible process. For a reversible isentropic process, there is no transfer of heat energy and therefore the process is also adiabatic. For an irreversible process, the entropy will increase. Hence removal of heat from the system (cooling)is necessary to maintain a constant internal entropy for an irreversible process in order to make it isentropic. Thus an irreversible isentropic process is not adiabatic.
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Isentropic flow isa)Irreversible adiabatic flowb)Reversible adiabatic flowc)Ideal fluid flowd)Frictionless reversible flowCorrect answer is option 'B'. Can you explain this answer?
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