Q:

What three things does a fire need to start?

A:

Quick Answer

The three things that are required to start a fire are fuel, oxygen and heat, which form the fire triangle. All three are dependent on one another, which means that a fire cannot be started if even one of them is missing.

  Know More

Full Answer

Oxygen in the air interacts with flammable vapors that are produced by fuel, whereby it creates a form of heat at a molecular level. After that, any source of ignition, such as a spark or a match, can cause it to combust. The more easily a material gives off flammable vapors when exposed to heat, the easier it is to start a fire.

Learn more about Thermodynamics

Related Questions

  • Q:

    How is fire made?

    A:

    According to Wikipedia, fire is a rapid, exothermic oxidation of a material, also known as combustion. For combustion to occur, energy in the form of heat, combustible material and an oxidizing agent like fluorine or oxygen must be present, according to Reader's Digest.

    Full Answer >
    Filed Under:
  • Q:

    What is the temperature of fire?

    A:

    Different materials burn at different temperatures, so a log fire burning in a fireplace may only average about 600 degrees C, but a well-stoked wood fire can exceed 1,100 degrees C. The flame from an acetylene torch burns at about 2,200 degrees C.

    Full Answer >
    Filed Under:
  • Q:

    What are some things that give off heat?

    A:

    Everything in the universe that is above absolute zero gives off heat. Only a hypothetical substance that is perfectly ordered having zero enthalpy and entropy at absolute zero and whose atoms are stationary gives off no heat.

    Full Answer >
    Filed Under:
  • Q:

    Why do things burn?

    A:

    Burning is a chemical reaction that involves the outer electrons of the substances. Usually, oxygen is one the elements, and something else that has excess electrons is the other. All chemical elements that aren't stable seek to become stable by the addition or subtraction of electrons. Oxygen needs two electrons to have a stable outer shell, and when it chemically reacts with a more electronegative substance, the result is fire.

    Full Answer >
    Filed Under:

Explore