The "Hydrogen Economy" relies on dihydrogen as a superior commercial fuel. Comparing the energy rele — Hydrogen Chemistry Question

💡 Solution & Explanation

Dihydrogen has an exceptionally high calorific value. Gaseous $H_2$ releases $143\text{ kJ/g}$, liquid $H_2$ releases $142\text{ kJ/g}$, LPG releases roughly $53\text{ kJ/g}$, and Methane releases $50\text{ kJ/g}$.