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← ScienceWhich risk increases when paraffin wax undergoes rapid melting?
A)Flammability of released hydrocarbon vapors✓
B)Formation of brittle crystalline structures
C)Increased reactivity with oxidizing agents
D)Decomposition via chain-scission reactions
💡 Explanation
Rapid melting elevates vapor pressure, and thus releases flammable vapors. The phase transition increases flammability because the rate exceeds the dissipation of released fuel via diffusion; therefore, the fire risk is higher, rather than creating polymer failure or reactive changes.
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