💥♨️💨

#combustion #heat generation #gas expansion #rapid reaction

⚫️🔥💨

#gunpowder #black powder #tnalleporp #deflagration #rapid burn #gas expansion #smoke powder

📦↗️🌀✨

#gas expansion #entropy increase #thermodynamics #statistical mechanics #spreading out #available microstates

🔥⚙️💨⬆️⬇️

#external heat source #piston movement #gas expansion #mechanical engine #work cycle