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You can boil water in a paper cup over a direct flame without burning it How can you explain that?
This is only how i explained it to myself after i did the experiment, so it might not be right. Burning is the result of a combustion reaction, and combustion reactions require a certain amount of activation energy to start. When the paper is in contact with water, the energy from the open flame that would usually start the combustion reaction is transferred to the water before the paper can ignite. This raises the temperature of the water and it will eventually reach boiling point. Now when all the water has evaporated, then the cup burns because there is nowhere left for the heat to be transferred to.
What else can I help you with?
What is the color of flame produced by burning magnesium?
The color of the flame produced by burning magnesium is a bright white.
Can you hold a balloon under a flame without popping it?
No, holding a balloon under a flame will cause it to pop because the heat weakens the rubber material, leading to a sudden burst. It's not advisable to expose a balloon to direct flame or heat sources.
How does a wick work to facilitate the burning of a candle?
A wick works by absorbing the melted wax in a candle and drawing it up to the flame, where it vaporizes and burns, providing fuel for the flame to continue burning.
Why does the candle blow out when you cover it with something?
When you cover a candle, you restrict the oxygen supply that is necessary for the flame to continue burning. Without oxygen, the combustion process cannot be sustained, causing the flame to extinguish.
How does candle wax work to fuel the flame and sustain the burning process?
Candle wax is made of hydrocarbons that vaporize when heated by the flame. These vapors mix with oxygen in the air and ignite, creating a continuous supply of fuel for the flame to burn. The wax also acts as a wick, drawing the liquid wax up to the flame where it vaporizes and continues the burning process.
When did Burning Flame end?
Burning Flame ended on 1998-12-06.
When was Burning Flame created?
Burning Flame was created on 1998-10-12.
When was Burning Like a Flame created?
Burning Like a Flame was created in 1987.
What is the duration of Burning Flame III?
The duration of Burning Flame III is 2700.0 seconds.
What is the duration of Burning Flame II?
The duration of Burning Flame II is 2700.0 seconds.
Why does the flame of a candle die when you cut off air supply?
The flame of a candle requires oxygen to continue burning. When you cut off the air supply, the flame is deprived of oxygen which is essential for the combustion process. Without oxygen, the flame cannot sustain itself and eventually dies out.
When did Burning Flame II end?
Burning Flame II ended on 2002-09-13.
When was Burning Flame II created?
Burning Flame II was created on 2002-07-29.
What is the color of the flame of burning lithium?
The color of lithium in the flame test is red.
What is the color of flame produced by burning magnesium?
The color of the flame produced by burning magnesium is a bright white.
What is the color of the flame produced by burning butane?
The flame produced by burning butane is typically blue in color.
If the gas is hydrogen the lighted (burning) what will happen to the slipnt?
If the gas is hydrogen and is lit, the flame will be colorless and almost invisible. This is because hydrogen burns cleanly without producing a visible flame.
