00:01
In this question we're going to be looking into the application of boyle's law.
00:05
And according to boyle, the pressure of a curse is inversely proportional to its volume.
00:11
So what this is saying is if we increase the volume of a curse, its pressure decreases.
00:18
And the vice versa is true, that is if we reduce the volume of a gas, its pressure increases.
00:25
So applying this to a swimmer or a diver with a snor what happens is when we breathe in, when we breathe in, we are expanding our lungs.
00:39
That is, we are increasing the volume and as a result, the pressure in our lungs decreases.
00:45
The opposite applies when we are breathing out.
00:49
If we breathe out, we are reducing the volume of our chest cavity.
00:54
That is, we are reducing the volume of our lungs.
00:56
As a result, the pressure increases.
00:59
Now applying this to what we've been given the scenario of a snortle, when we breathe in, we expand the volume of our chest, reducing the pressure on the surface of the lungs to less than one atmosphere, to less than one atmosphere...