Why does a paper cup containing water not burn when placed over a flame? explain.
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Answered by
42
The water in the cup serves as a "heat sink". It prevents the paper from getting hotter than the boiling temperature of the water.
Answered by
34
Answer:here is your answer
◆ Paper cup with water is not burned beacause it prevents paper cup by attaining it's ignition temperature.
◆Combustion takes place only when it attains it's ignition temperature
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