Question
Download Solution PDFIn a steady flow reversible adiabatic process, work done is equal to:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
The first law of thermodynamics:
This law states that the heat and mechanical work are mutually convertible. According to this law, a definite amount of mechanical work is needed to produce a definite amount of heat and vice versa.
∴ From 1st Law of Thermodynamics,
- q = Δu + pdv for a closed system and,
- q = Δh - vdp for an open system
and for a reversible adiabatic process q = 0, .i.e. Δh = vdp
from Steady Flow Energy Equation S.F.E.E
when potential and kinetic energy changes are zero or negligible,
h1 + q = h2 + w
given reversible adiabatic process so q = 0,
w = h1 - h2 = Δh
∴ In a steady flow reversible adiabatic process, work done is equal to change in enthalpy.
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