Using standard enthalpies information, calculate the standard enthalpy change for this reaction:

Question

a) (thermite reaction) 2Al(s) + Fe2O3(s) = Al2O3(s) + 2Fe(s)
b) Mg(OH)2(s) = MgO(s) + H2O(I)
c) N2O4(g) + 4H2(g) = N2(g) + 4H2O(g)
d) SiCl4(I) + 2H2O(I) = SiO2(s) + 4HCI(g)

Answer 1

dHrxn = (n*dHf products) - (n*dHf reactants)