Question

How does Boyle’s law relate to breathing?

Answer 1

Hint: According to Boyle's law, with the increase in the pressure, the volume of the gas decreases and with the increase in the volume of gas the pressure decreases at constant temperature and the amount of gas remains constant.

Complete step by step answer:
Boyle's law is the gas law which gives the relation between the pressure and the volume of the gas. It was first noted by Richard Towneley and Henry power. After that Robert Boyle discovered and confirmed the law with the experiment and published it in 1662.
Boyle’s law explains how the volume of the gas changes with the change in the pressure when the temperature and mass of the gas is kept constant.
The Boyles’s law state that the absolute pressure exerted by the mass of the ideal gas is inversely proportional to the volume when the temperature and the amount of gas is kept constant.
Boyle's law is mathematically represented as shown below.
$P\propto \dfrac{1}{V}$
Where,
P is the pressure
V is the volume
Boyle's law has application in human breathing. As the lungs expands, the volume inside the lungs increases and the pressure inside decreases (it follows Boyle’s law). As the pressure is in lower concentration inside the body, the air moves inside the lungs from outsides. This process is known as inhalation and during the exhalation process, the volume inside the lungs decreases and the pressure increases. As a result the air moves out.

Note: The Boyle’s law has other applications also like working of syringes. In a syringe when we pull the plunger of the syringe, the volume inside the tube increases and the pressure is reduced and as a result external fluid comes inside the tube.