In the reaction, C + O2 → CO2; ΔH = – 94 kcal. What is the heat content (enthalpy) of O2 ? August 29, 2021March 11, 2019 by admin In the reaction, C + O2 → CO2; ΔH = – 94 kcal. What is the heat content (enthalpy) of O2 ? A. -94 kcal B. > -94 kcal C. < – 94 kcalD. Zero