Q:

# What is an application of Charles' Law?

A:

An application of Charles' Law is a floating hot air balloon. A torch heats the air inside the balloon causing the air particles to move faster and disperse, making the air in the balloon less dense than the surrounding air so that the balloon floats.

## Keep Learning

Charles' Law explains the relationship between the volume and temperature of a gas. It states that heating a gas while holding its pressure constant results in an increase in the volume of the gas. Similarly, the volume of the gas decreases when the temperature decreases.

A hot air balloon is an application of Charles' Law. The fuel used heats the air inside the balloon. Heating the air increases the speed of its gas particles in air, so they move faster and spread out, according to kinetic molecular theory as described by the University of California. This causes the gas inside the balloon to take up more space.

The speed of movement of the gas particles as well as their dispersal causes the air inside the balloon to become less dense than the air surrounding it. As a result, the balloon floats. In short, the hot air in the balloon rises because of its decreased density.

Sources:

## Related Questions

• A:

According to the website ScienceBits, the reason breath is visible in cold weather is due to the condensation created when warm, humid air from the lungs collides with the colder, outside air Because frigid air cannot hold as much water vapor as hot air, the resulting saturation of water vapors into the atmosphere becomes visible to the human eye.

Filed Under:
• A:

When a balloon is placed in the freezer, it will shrink slightly. Once removed from the freezer, it will return to its original size.

Filed Under:
• A:

Because matter - solid, liquid, gas or plasma - comprises anything that takes up space and has mass, an experimenter can prove that air has mass and takes up space by using a balloon. According to About.com, balloons are inflatable and hold the gaseous matter.