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← ScienceWhich outcome occurs when a supercritical fluid's pressure decreases at constant enthalpy?
A)Temperature change due to Joule-Thomson effect✓
B)Adiabatic expansion reaching triple point
C)Spontaneous crystallization into solid phase
D)Isothermal conditions maintained by latent heat
💡 Explanation
Due to the Joule-Thomson effect, a real gas or supercritical fluid experiences a temperature change during throttling because intermolecular forces must be overcome as the fluid expands. Therefore, its temperature changes, rather than immediately undergoing a phase transition which would require an abrupt pressure and temperature change.
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