Hydrogen undergoes reaction with oxygen in a fuel cell. $2\text{H}_2 + \text{O}_2 \rightarrow 2\text{H}_2\text{O}$ This reaction is exothermic. For each mole of water produced, 286 kJ of energy is given out. What volume of hydrogen gas, at room temperature and pressure, would react with oxygen so that 7000 J of energy is released?
- A$587\,\text{cm}^3$
- B$1175\,\text{cm}^3$
- C$587\,\text{dm}^3$
- D$1175\,\text{dm}^3$