Sciencemadness Discussion Board

how to know how much ethanol was vaporized in air??

iloveloli - 21-4-2017 at 06:29

Recently, i built a ethanol fuel cannon.
my cannon is similar to this,

https://www.youtube.com/watch?v=IgeOX2a1Sdo

I don't have a speedometer to check the speed.
so i plan to calculate the energy that provide from the combustion.
I think the PV=nRT isn't work in this case.

Do anyone know how to calculate it???

Sulaiman - 21-4-2017 at 06:51

maybe you could construct one of these https://en.wikipedia.org/wiki/Ballistic_pendulum