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← ScienceWhich outcome occurs when rapid decompression causes adiabatic cooling in commercial aeroplane fuel tanks?
A)Fuel temperature reaching flashpoint
B)Rupture of tank's pressure relief
C)Change of state: Vaporization✓
D)Increased fuel pump cavitation risk
💡 Explanation
Vaporization occurs because the rapid pressure drop causes adiabatic cooling. The mechanism, known as the Joule-Thomson effect, lowers vapour pressure, therefore liquid fuel transitions to a gaseous state rather than temperature causing combustion or only the relief valve opening; depressurisation causes phase changes first.
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