In: Chemistry
Write a chemical equation for the formation reaction and then calculate the standard free energy of formation of each of the following compounds from the enthalpies of formation and the standard molar entropies, using ∆G◦ r = ∆H◦ r - T∆S◦ r:
(a) NH3(g)
(b) H2O(g)
(c) CO(g)
(d) NO2(g)