In some fireworks, the propellant is formed by the reaction between aluminium powder and anhydrous barium nitrate. The only products are metal oxides and nitrogen. What volume of nitrogen, measured under room conditions, is formed when $0.783\text{ g}$ of anhydrous barium nitrate reacts with excess aluminium?
- A$46.8\text{ cm}^3$
- B$72.0\text{ cm}^3$
- C$93.6\text{ cm}^3$
- D$144\text{ cm}^3$