The heat combustion of acetylene, c2h2(g), at 25°c, is –1299 kj/mol. at this temperature, δhvalues for co2(g) and h2o(l) are –393 and –286 kj/mol, respectively. calculate δhfor acetylene.

Using the information in the table to the right, calculate the enthalpy of combustion of each of the following substances:  acetylene:       ⇒ -1,256 kJ/mol ethanol:       ⇒ -1,277 kJ/mol  This is from a different problem on Edgenuit.y but hope this helps someone who couldn’t find the answer like me.