Physics · Thermal Properties of Matter
Why does a paper cup filled with water not burn when placed over a direct flame?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The water creates a layer of dense steam that extinguishes the flame underneath
- 2The chemical structure of the paper changes and becomes fireproof when wet
- 3The water absorbs the heat, preventing the paper from reaching its ignition temperature✓
- 4The water evaporates rapidly and cools the paper surface continuously
Correct answer
The water absorbs the heat, preventing the paper from reaching its ignition temperature
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