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← ScienceWhich outcome occurs when an isentropic expansion of steam in a nozzle causes localized supersonic flow?
A)Wilson condensation increases light scattering✓
B)Cavitation damages the nozzle material
C)Nozzle efficiency remains constant, unchanged
D)Water hammer blocks exit pressures
💡 Explanation
Wilson condensation occurs because rapid isentropic expansion leads to supersaturation, causing spontaneous nucleation of droplets, rather than cavitation that depends on sub-saturation. Therefore, smaller droplets nucleate and form.
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