Question

What is the real-life example of ideal gas law?

Answer 1

Hint: The ideal gas law states the relationship between the pressure, temperature, and volume for the combination of ideal gases. It is an approximate behaviour of ideal gases under many conditions. The ideal gas law can be applied to various situations in our everyday life.

Complete answer:
In simple language, we can state the ideal gas law as, for a certain amount of gas, if the gas is compressed to a smaller volume, the temperature rises. Similarly, the gas expands in volume when the temperature falls. This means the temperature and volume of a gas are inversely proportional to each other.
Now, let’s look at a few examples of the application of ideal gas law in everyday life.
Airbags: the airbags in vehicles work on the ideal gas law. When the airbags are installed the different types of gases quickly fill in which inflates them. The nitrogen gas gets filled in the airbags due to a reaction between sodium azide and potassium nitrate. In this reaction, the sodium metal is neutralized, which produces enough nitrogen gas just to bloat the airbag and not to overfill them.
Refrigerator: In a refrigerator, the coolant gas is compressed which means the volume of gas is decreased that eventually increases the temperature. This hot gas is passed through the radiator, which expels the heat and the gas further expands. The expanded gas cools down by absorbing the heat from the interior of the refrigerator.
Air conditioner: In this appliance, the same mechanism is used as the refrigerator. The only difference is that here the home replaces the refrigerator.
Building and airplanes: The ideal gas law is applied in a residential and commercial building by installing ventilation units. In these buildings the ventilation is not sufficient, so to maintain a proper balance between the gases these units are set up. Also, in airplanes, this law is used to secure an equal pressure balance inside and outside the plane.

Note:
The ideal gas law is also called the general gas equation. It is given by the equation: $PV=\text{ nRT}$.
The ideal gas law was given by Benoit Paul Émile Clapeyron. He summed up the laws given by Jacques Charles, Robert Boyle, Guillaume Amontons, and Amedeo Avogadro to come up with the ideal gas law. However, this law has some variable limitations.