Compute the change in energy necessary in making 550 ml of

Question

Compute the change in energy necessary in making 55.0 mL of water from its elements under standard conditions.

The chemical equation for the formation of water is -H2(g) + 1/2 O2(g) --> H2O(l)

The chemical equation for the vaporization of water is- H2O(l) --> H2O(g)