TS EAMCET Medical 2015 Paper

Question : 127 of 160

Marks: +1, -0

If the standard molar enthalpy of formation of CaO(s), CO2 (g) and CaCO3(s) is and -1207 kJ mol−1 respectively, the ΔrH− in kJ mol−1 for the reaction
CaCO3 (s) → CaO (s) + CO2 (g) is