Chapter 13, Problem 3RAT

How much energy, in kilojoules, is released or absorbed from the reaction of $1$ mole of nitrogen, ${\text{N}}_{\text{2}}$, with $3$ moles of molecular hydrogen, ${\text{H}}_{\text{2}}$, to form $2$ moles of ammonia, ${\text{NH}}_{\text{3}}$? Consult Table 13.1 for bond energies.

(a) $+899\text{ kJ}\text{/}\text{mol}$

(b) $-993\text{ kJ}\text{/}\text{mol}$

(c) $+80\text{ kJ}\text{/}\text{mol}$

(d) $-80\text{ kJ}\text{/}\text{mol}$