Under specific conditions, 50 cm3 of sulfur dioxide gas reacts completely with 25 cm3 of oxygen gas to produce 50 cm3 of a gaseous sulfur oxide.
Which of the following equations is most likely to represent this reaction?
SO2(g)+2O2(g)→SO6(g)\text{SO}_2\text{(g)} + 2\text{O}_2\text{(g)} \rightarrow \text{SO}_6\text{(g)}SO2(g)+2O2(g)→SO6(g)
2SO2(g)+O2(g)→2SO3(g)2\text{SO}_2\text{(g)} + \text{O}_2\text{(g)} \rightarrow 2\text{SO}_3\text{(g)}2SO2(g)+O2(g)→2SO3(g)
2SO2(g)+O2(g)→S2O6(g)2\text{SO}_2\text{(g)} + \text{O}_2\text{(g)} \rightarrow \text{S}_2\text{O}_6\text{(g)}2SO2(g)+O2(g)→S2O6(g)
SO2(g)+O2(g)→SO4(g)\text{SO}_2\text{(g)} + \text{O}_2\text{(g)} \rightarrow \text{SO}_4\text{(g)}SO2(g)+O2(g)→SO4(g)
