Question

How is Avogadro’s law used in everyday life?

Answer 1

Hint: Avogadro’s law states that under the same conditions of temperature and pressure, equal volumes of different gases contain an equal number of molecules. This law corresponds to the ideal gas law.

Complete answer:
- Avogadro’s law is gas law which states that the total number of atoms or molecules of a gas is directly proportional to the volume occupied by the gas at constant temperature and pressure.
- This is closely associated with the ideal gas law equation. This is so because it shows correlation between temperature, pressure, volume, and amount of substance for a given gas.
- Avogadro’s law shows essential significance in everyday life. Let us consider the following examples for better understanding.
- When we blow up a balloon, molecules of gas are added into it. This results in an increase in volume of the balloon, with a gradual decrease in the volume of our lungs due to the decrease in the number of molecules.
- This phenomenon works similarly when a pump blows air in a bicycle tire.
- A hot air balloon floats with regards to the Avogadro’s law. Gases in such balloons show high temperature, and thus contain fewer gas molecules per volume of space. Since the pressure of gases is the same inside-out, the balloon becomes lighter than the surrounding gas. This makes the balloon float.

Note: As per the ideal gas equation, volume is inversely proportional to the pressure and directly proportional to temperature. Equal volumes of gases at the same temperature and pressure consist of an equal number of molecules.