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← ScienceWhich consequence results when a differential scanning calorimeter detects a compound's unexpected exothermic phase transformation?
A)Sample thermal decomposition accelerates rapidly✓
B)Increased endothermic reaction kinetic energy
C)Instrument baseline shift requires recalibration
D)Refrigerant coolant experiences excess superheating
💡 Explanation
Sample decomposition accelerates rapidly, because the exothermic transition releases energy, increasing temperature via self-heating; this causes thermal runaway; therefore, decomposition rate increases, rather than an endothermic effect, which requires energy input.
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