Q:

Which gas is used in light bulbs?

A:

Argon is a commonly used gas used to fill incandescent light bulbs. It increases bulb life by preventing the tungsten filaments from deteriorating too quickly. Other gases such as helium, neon, nitrogen and krypton are also used in lighting.

The gases used in light bulbs are known as inert gases. An inert gas is non-reactive and extremely resistant to chemical change. Inert gases can either be elements or compounds. Due to their inherent stability, inert gases such as argon and nitrogen do not allow a filament to catch fire in a light bulb. Other examples of usage of an inert gas include packing food with nitrogen to prevent spoilage and storing historical documents under argon to resist degradation.


Is this answer helpful?

Similar Questions

  • Q:

    Is fire a gas?

    A:

    Fire is primarily composed of several gases ignited by a source of heat and exposure to oxygen. Visible flames are the result of the energy given off through a chemical reaction caused by the burning of a fuel source.

    Full Answer >
    Filed Under:
  • Q:

    What is argon gas?

    A:

    Argon gas is an element found on the periodic table in the noble gas group. It is element number 18, and it has an atomic mass of 40 grams per mole.

    Full Answer >
    Filed Under:
  • Q:

    Why does gas diffuse faster than liquid?

    A:

    Gas molecules diffuse faster than liquid molecules because they have more kinetic energy and are smaller than liquid molecules. When heat is added to a gas or liquid, the amount of kinetic energy in the molecules increases and speeds up their rate of diffusion.

    Full Answer >
    Filed Under:
  • Q:

    How does gas become a liquid?

    A:

    The process of a gas changing to a liquid is called condensation, and for condensation to take place, the environment has to reach maximum vapor pressure, generally through a lowering of temperature in the case of the water cycle. Because pressure varies inversely with temperature, as temperature decreases, pressure goes up, causing the gas molecules to move with progressively less kinetic energy. Eventually, liquid vapor and droplets form, and the gas begins to condense.

    Full Answer >
    Filed Under:

Explore