Chemistry · CHEMICAL BONDING AND MOLECULAR STRUCTURE

Given the bond dissociation enthalpy of \( \text{N}_2(\text{g}) \) is \( 946.0\text{ kJ mol}^{-1} \) and that of \( \text{O}_2(\text{g}) \) is \( 498.0\text{ kJ mol}^{-1} \). If a gaseous mixture contains \( 0.5\text{ mol} \) of \( \text{N}_2 \) and \( 1.5\text{ mol} \) of \( \text{O}_2 \), what is the total energy required to completely dissociate all molecules into isolated gaseous atoms?

1. A
   \( 1444.0\text{ kJ} \)
2. B
   \( 1220.0\text{ kJ} \)
3. C
   \( 1693.0\text{ kJ} \)
4. D
   \( 2166.0\text{ kJ} \)