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← ScienceWhich outcome occurs when the adiabatic expansion ends below the triple point during the hydrogen liquefaction?
A)Solid hydrogen forms uncontrollably✓
B)Vapor pressure remains near zero
C)Latent heat transfer maximizes
D)Vapor-liquid equilibrium gets maintained
💡 Explanation
Solid hydrogen forms because adiabatic expansion cools the gas further and skips the liquid phase during direct solidification. Skipping the usual latent heat transfer rather than alternative phase behaviour, therefore solid hydrogen forms directly.
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