The enthalpy changes for two reactions are given by the equations2Cr(s)+32O2(g)→Cr2O3(g),ΔH=−1130kJ ; C(s)+12O2(g)→CO(g),ΔH=−110kJ ; What is the enthalpy change (in kJ) for the reaction ? 3C(s) + Cr2O3(s) → 2Cr(s) + 3CO(g)