- What type of fuels burn without a flame?
- Can fire burn itself?
- Do all the fuel burn with flame?
- Can fire burn underwater?
- Why does charcoal not burn on fire?
- What are the 5 stages of fire?
- What does yellow smoke mean?
- What does the color of smoke mean?
- Does charcoal burn with flame?
- What are the 4 stages of a fire?
- What Cannot be burned by fire?
- Can a fire burn without oxygen?
- Why does paper burn with a yellow flame?
- How it is possible that water can be boiled in a paper cup without burning it?
- Do all fires need oxygen?
- Does the sun need oxygen to burn?
- What gas does fire need to burn?
- Does a matchstick burn by itself how does it burn?
- What are the 4 types of fire?
- What is the hottest color for fire?
- Is there a black fire?
What type of fuels burn without a flame?
Liquefied petroleum gas (LPG), also referred to as simply propane or butane are flammable mixtures of hydrocarbon gases, used as fuel in heating and cooking equipment and produce a blue flame.
Camphor gives a flame, which is widely used in worship.
Charcoal, does not vaporise and so, does not produce a flame..
Can fire burn itself?
Fire is a chemical process requiring three things to occur: oxygen, fuel and an ignition source. Without one of these factors, a fire can’t start or will burn itself out. … This is what creates the flame and heat we call fire.
Do all the fuel burn with flame?
All the gases which undergoes combustion produces flame. But only those solids and liquid fuels which vaporise on being heated,burn with the flame. Some of the substances which burn by producing flames are LPG, CNG, biogas, wax, camphor, magnesium, kerosene oil, mustard oil.
Can fire burn underwater?
Combustion needs oxygen to take place, if you provide an oxygen source by chemical or mechanical means, fire can burn underwater. A chemical reaction that gives up a lot of heat may stay burning for a little bit, but remember water has a high heat capacity and would cold the reaction quite fast.
Why does charcoal not burn on fire?
Coal does not produce flame when burnt because it does not vapourizes, only those substances which vapourizes on burning produce flame like wax , natural gas.
What are the 5 stages of fire?
These stages are incipient, growth, fully developed, and decay. The following is a brief overview of each stage.
What does yellow smoke mean?
When these fuels do not burn completely because of a deficiency of oxygen, the conversion of carbon into carbon dioxide and water is impeded; and free carbon, or soot, appears as smoke. … Insufficient oxygen can also lead to a yellow flame because unconverted carbon particles glow yellow hot.
What does the color of smoke mean?
At times, black smoke can be an indicator that a manmade material is burning such as tires, vehicles or a structure. … As a general rule, the darker the smoke, the more volatile the fire is. Grey smoke can indicate that the fire is slowing down and running out of materials to burn.
Does charcoal burn with flame?
The substances which vapourise during burning, give flames. For example, kerosene oil and molten wax rise through the wick and are vapourised during burning and form flames. Charcoal, on the other hand, does not vapourise and so does not produce a flame.
What are the 4 stages of a fire?
Compartment fire development can be described as being comprised of four stages: incipient, growth, fully developed and decay (see Figure 1). Flashover is not a stage of development, but simply a rapid transition between the growth and fully developed stages.
What Cannot be burned by fire?
Riddle: What can’t be burned in fire, nor drowned in water? Answer: Ice.
Can a fire burn without oxygen?
A fire cannot burn without oxygen. … It should be noted that in the presence of carbon, nitrogen and oxygen, stars heavier than the Sun may burn hydrogen to helium by using the C, N and O as catalysts. Even in these stars, however, an absence of oxygen does not prevent nuclear burning.
Why does paper burn with a yellow flame?
Why does paper burn with a yellow flame ? A yellow flame comes about when there is insufficient supply of oxygen. … In this case the hydrocarbons do not burn completely, the temperature of the flame is lower than that of the blue flame. The yellow flame also leaves behind a black soot or residue.
How it is possible that water can be boiled in a paper cup without burning it?
Water draws heat away from a heat source through convection until it reaches its boiling point of 100 degrees Celsius. The temperature of the water remains fairly constant once it starts boiling—in fact, liquid water is incapable of getting hotter until it’s all turned to steam.
Do all fires need oxygen?
In most fire, its free oxygen (O2) which takes part in the reaction (whether is a fire in the BBQ pits or a forest fire). … No, fire is a chemical reaction it converts coal into ash, heat is released in the reaction. For this reaction, oxygen is required.
Does the sun need oxygen to burn?
The Sun does not “burn”, like we think of logs in a fire or paper burning. The Sun glows because it is a very big ball of gas, and a process called nuclear fusion is taking place in its core. … Hydrogen really doesn’t burn, it fuses, into helium. So no oxygen is required!
What gas does fire need to burn?
oxygenYou need three ingredients to make fire: fuel (like wood or gasoline), oxygen and heat. Fire is a chemical reaction between oxygen and the fuel.
Does a matchstick burn by itself how does it burn?
Answer No a matchstick does not burn by itself. A matchstick burns only when it is rubbed against the side of matchbox which is meant to rub the matchstick to ignite it. And when a matchstick is brought near the burning object matchstick starts burning.
What are the 4 types of fire?
Classes of fireClass A – fires involving solid materials such as wood, paper or textiles.Class B – fires involving flammable liquids such as petrol, diesel or oils.Class C – fires involving gases.Class D – fires involving metals.Class E – fires involving live electrical apparatus. (More items…
What is the hottest color for fire?
violetThe hottest flame is violet on the color spectrum and white in the visible spectrum. The type of fuel and impurities, in addition to the flame temperature, contribute to the color of the flame. Once the gas forms, combustion occurs as the various molecules react with oxygen to produce the heat and light known as fire.
Is there a black fire?
Flames emits light and heat, so it seems impossible to make black fire. However, you actually can make black fire by controlling the wavelengths of absorbed and emitted light.