Show the relation between the enthalpies of the reactions: $H_2(g)+ \frac{1}{2} O_2(g) \rightarrow H_2O(g); \Delta H_1$ and $H_2(g)+\frac{1}{2}O_2(g) \rightarrow H_2O(l); \Delta H_2$

Question

(a) $\Delta H_1 < \Delta H_2 $
(b) $\Delta H_1 + \Delta H_2 = 0 $
(c) $\Delta H_1 > \Delta H_2 $
(d) $\Delta H_1 = \Delta H_2 $