Water is an excellent conductor of heat and absorbs or uses the flames energy to evaporate. Because the paper cup cannot become appreciably hotter than the water it contains, the cup will not ignite until the water has all turned to steam and risen away.
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Water is an excellent conductor of heat and absorbs or uses the flames energy to evaporate. Because the paper cup cannot become appreciably hotter than the water it contains, the cup will not ignite until the water has all turned to steam and risen away.
Verified answer
Explanation:
The paper cup doesn't burn when we heat it because the heat is transferred to the water in it