4 ms·
> A gallon of gas is 8887 grams/gallon. That doesn’t seem right, gas is 20-30% lighter than water and water is only 8lbs~=3600 grams.
by niloc132 4y ago
> A gallon of gas is 8887 grams/gallon.
That doesn’t seem right, gas is 20-30% lighter than water and water is only 8lbs~=3600 grams.
- Symbiote 4y agoThe additional mass comes from oxygen from the air used to burn the fuel. Burn 1g of coal, to make it easy: C + O₂ → CO₂ Carbon has molecular mass 12g/mole (carbon has atomic weight ~12), carbon dioxide 44g/mole (12 + 2×16). So burning 1g of carbon produces 3.67g of CO₂.
- niloc132 4y agoAh thanks, that does indeed line up the numbers I had misunderstood.