Calculate the Delta H*rxn for the following @ 32degrees celcius?

Please help! SOS! My college chemistry professor has officially lost his mind and gave homework over the thanksgiving holiday!!!
A. 2CH4(g)=>C2H6(g)+H2(g)
B. 2NH3(g)=>N2H4(g)+H2(g)
C.2KClO3(s)=>2KCl(s)+3 O2(g)
Update: Its do in two days!!!
Update 2: it is online HW with no hints on how to go about answering the question
2 answers 2