For the combustion reaction of ethylene
(c2h4)
ch4 + 302 + 2 co2 + 2h20
assume all reactants and products are gases,
and calculate the ahxn using the following
ah values (in kj/mol):
ahch, = 52
ahco, = -393
aho, = 0
ahⓡ4,0 = –242

The answer is c - the principal of original lateral continuity. 

Anyone know the answer?

Hello,#agreed with joseph002.i got my source also from  source: hope this

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