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← ScienceWhich outcome occurs at isobaric conditions during a substance transition?
A)Temperature remains constant upon energy change✓
B)Volume decreases proportionally to entropy decrease
C)Pressure exhibits rapid cyclical oscillations
D)Enthalpy reaches a global minimum value
💡 Explanation
During a phase transition at constant-pressure, the energy added or removed changes the substance's phase while Temperature remains constant; this is due to latent heat transfer, rather than altering the materials kinetric energy. Therefore temperature stabilizes; rather than oscillating, enthalpy decreasing further, or volume immediately tracks entropy.
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