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← ScienceDuring rapid isentropic expansion in a steam turbine, some water vapor condenses causing which outcome?
A)Increased turbine blade erosion rate✓
B)Decreased exhaust gas enthalpy
C)Enhanced turbine stage efficiency
D)Reduced overall turbine power output
💡 Explanation
Water droplets increase due to homogeneous nucleation because the rapid expansion makes the vapor supersaturated at the lower temperature, therefore increasing blade erosion rate due to impact rather than improving efficiency.
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