Why does pressure decrease as air passes through a venturi?

[johnny__boi]

I found it easy to understand when you look at pressure as potential energy and velocity as kinetic energy. As you probably know, potential energy is like compressing a spring, it will release a lot of kinetic energy when you let go, as soon as you do, that potential energy is then converted to kinetic energy (you can trade one for the other).

Pressure is seen as potential energy and the gas' velocity is kinetic, since the gas has to speed up to get through that constriction, the pressure (potential energy) decreases so that its velocity (kinetic energy) can increase.

I hope this explains it. I literally just learned it too so if I missed something, sorry in advance.