Calculate the enthalpy of the reaction
2NO(g)+O2(g)?2NO2(g)
given the following reactions and enthalpies of formation:
12N2(g)+O2(g)?NO2(g),   ?H?A=33.2 kJ
12N2(g)+12O2(g)?NO(g),  ?H?B=90.2 kJ
Express your answer with the appropriate units.
Part B
Calculate the enthalpy of the reaction
4B(s)+3O2(g)?2B2O3(s)
given the following pertinent information:
B2O3(s)+3H2O(g)?3O2(g)+B2H6(g),    ?H?A=+2035kJ
2B(s)+3H2(g)?B2H6(g),                            ?H?B=+36kJ
H2(g)+12O2(g)?H2O(l),                ?H?C=?285kJ
H2O(l)?H2O(g),                                          ?H?D=+44kJ
Express your answer with the appropriate units.
