Science At Home - Build A Working Lung
HEY SCIENCE FANS!
You may know WHY we breathe, but do you know the science behind how we breathe? It’s fascinating! Learn how, and then build a working model lung with nothing more than two balloons and an empty plastic bottle (and maybe some scissors)? Yes! You can - and Ryan shows you how!
Boyle’s Law
Boyle’s Law (which may also be referred to as Mariotte’s law or the Boyle-Mariotte law) can be stated this way:
For a fixed amount of an ideal gas kept at a fixed temperature, pressure and volume are inversely proportional.
The math can be expressed as follows:
PV = k
where :
P = pressure
V = volume
k = a constant
What does that mean?
Simply put, the product (multiplication) of pressure and volume is a constant. If the volume increase, the pressure must decrease. If the volume decreases, the pressure must increase - assuming that temperature is held constant.
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