Table of Contents
Why does fire burn on water?
When you pour water onto a fire, the heat of the fire causes the water to heat up and turn into steam. This is a very energy-intensive reaction, and it sucks away the heat (which is a form of energy) of the fire. This leaves the fire without enough energy to keep burning.
Why does fire not burn in water?
The water that is formed is much less reactive, and does not easily react with oxygen, and so will not burn. Because water is so non-reactive, it’s interaction with the fire is entirely physical. It absorbs a lot of heat very quickly and prevents oxygen from getting to the fuel.
What causes visible flame?
As they heat up, the rising carbon atoms (as well as atoms of other material) emit light. This “heat produces light” effect is called incandescence, and it is the same kind of thing that creates light in a light bulb. It is what causes the visible flame. When the flame ignites the gases, the fire spreads.
What element burns in contact with water?
For decades, science enthusiasts have delighted at the famously energetic way sodium and potassium explode on contact with water.
How can water be set on fire?
Water can contribute to a fire through other reactions like the reaction of water with reactive metals (like alkali metals, magnesium and others), which generates flammable hydrogen (H2) but that’s not really the water itself contributing to the fire but the rather hydrogen catching fire.
How does the color of a flame relate to temperature?
The color inside the flame becomes yellow, orange, and finally red. The further you reach from the center of the flame, the lower the temperature will be. The red portion is around 1070 K (800 °C). The orange, yellow, and red colors in a flame do not relate only to color temperature.
What causes the color of a natural gas flame?
The yellow/orange/red colour is created by carbon soot particles in the flame, produced as the result of incomplete methane gas combustion. With complete combustion, methane burns with a blue flame color (natural gas blue flame) and burns at a temperature of around 1]
Why does the flame go out when the jar is covering it?
Why does the flame go out when the jar is covering it? The substance that reacts with the candle wax is oxygen. It comes from the air. Putting the jar over the candle keeps oxygen from outside the jar from getting in.
Which is an example of a flame produced by an element?
For example, copper produces a blue flame, lithium and strontium a red flame, calcium an orange flame, sodium a yellow flame, and barium a green flame. This picture illustrates the distinctive colors produced by burning particular elements. A flame from an oxyacetylene torch burns at over 3000?C, hot enough to use for underwater welding.
https://www.youtube.com/watch?v=U93QRMcQU5Y