Uh, air, volume, whatever. I think I said that. "Fuel has energy and that mixed with oxygen and ignition makes an expolsion that produces alot more volume"
I don't think I'm confused. Mass = volume.
mass
noun 2
Definition: measurement
Synonyms: bulk, dimension, extent, greatness, magnitude, size, volume
Source: Roget's New Millenniumâ„¢ Thesaurus, First Edition (v 1.1.1)
Copyright © 2005 by Lexico Publishing Group, LLC. All rights reserved.
Might mean something to your employer.