The enthalpy of formation for cap c sub 6 cap h sub 6 l is 49 point 0 kJ over mol Consider the reaction. 6 cap c open paren s comma graphite close paren plus 3 cap h sub 2 g rightarrow cap c sub 6 cap h sub 6 l Is the reaction endothermic or exothermic, and what is the enthalpy of reaction? Use Δ⁢H_rxn=∑(Δ⁢H_f_1p⁢r⁢o⁢d⁢u⁢c⁢t⁢s)−∑(Δ⁢H_f_1r⁢e⁢a⁢c⁢tan⁡t⁢s)