Ammonia gas is synthesized according to the following balanced equation.
N2(g) + 3H2(g) → 2NH3(g)

If 2.56 L of N2 reacts with 5.32 L of H2, what is the theoretical yield (in liters) of NH3? Assume that the volumes of the reactants and products are measured at standard temperature and pressure.

Ibelieve its because the stove is a cleaner burning fuel

Combustion is the act or process of burning. therefore, i believe the answer is  a: burning wood. 

2poclâ‚(g) ⇜ 2 pclâ‚(g) + oâ‚‚(g) â†gâ° = (2 mol)î”gfâ°(pclâ‚) – (2 mol)î”gfâ°(poclâ‚) = (2 mol)(–270 –(–502) kj/mol) â†gâ° = + 464 kj = â†hⰠ– tî”sâ° î”sâ° = 179 j/k ⇒ â†hâ° = â†gâ° + (298 k)(179 j/k) = –411 kj assuming that î”hâ° and î”sâ° do not depend on temperature, the temperature at which â†gâ° = 0 is where t = â†hâ°/î”sâ° = (–411 kj)/(0.179 j/k) = 2294 k. at that temp. keq = 1 for the reaction.