Chemistry

Chemistry

Problem

Standard enthalpies of formation at 298 K are: CaCO_3(s): –1 207 kJ mol⁻¹ CaO(s): –635 kJ mol⁻¹ CO_2(g): –394 kJ mol⁻¹ What is the standard enthalpy change, in kJ mol⁻¹, for the reaction CaCO_3(s) → CaO(s) + CO_2(g)? a) −178-178 b) +572+572 c) +178+178 d) +966+966

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