Q:

# How is the ideal gas law used in everyday life?

A:

### Quick Answer

The most important use of the ideal gas law in daily life is in estimating the amount of ventilation a building needs for human use; another use is in estimating cabin pressurization in airplanes. In any closed environment with many people inside, the amount of air that gets through the walls may be insufficient. The amount of oxygen in a given volume is determined by this law.

Know More

## Keep Learning

### Full Answer

The ideal gas laws give the relationships between pressure, temperature and volume for any mix of ideal gases. Unfortunately, only the noble gases such as helium and neon are actually close to ideal, but the ideal gas law is still a close enough approximation for many purposes.

In any environment where the intake of oxygen and the release of carbon dioxide is likely to be insufficient for the number of people inside, some type of ventilation must be installed. This ventilation must be lesser or greater depending on the number of people and their level of activity. In sealed environments such as an airplane at cruising altitude, air must be pumped in at a greater pressure than the outside pressure. The ideal gas laws, combined with information about the average pressure and percent of oxygen in the air, tell how much oxygen needs to be brought in to keep the air fresh and sufficiently oxygenated.

Learn more about States of Matter
Sources:

## Related Questions

• A:

The combined gas law applies any time there is a closed system with a fixed amount of gas, including the tires on a car. It expresses the behavior of the gas when temperature, volume or pressure changes, according to About.com.

Full Answer >
Filed Under:
• A:

Ideal gases are hypothetical substances studied by scientists and students to simplify intermolecular forces. Ideal gases are point masses that constantly move in a random, straight-line nature. The behavior of ideal gases, meaning the relationship of pressure (P), temperature (T) and volume (V) is summarized as PV=nRT, where "n" is the number of moles of gas. This equation for ideal gases will always equal one.

Full Answer >
Filed Under:
• A:

An ideal gas is a theoretical gas with a certain set of properties that allow it to obey the ideal gas laws. A real gas is an existing gas (such as oxygen or hydrogen) that follows a different set of laws due to variations in its properties compared to ideal gases.

Full Answer >
Filed Under:
• A:

Boyle's law, the principle that the pressure on a gas is inversely proportional to its volume at constant temperatures, is demonstrable with everything from balloons to soda cans to SCUBA gear. Aerosol cans and syringes both rely on Boyle's law in order to perform their functions as well.

Full Answer >
Filed Under: