Calculate ΔH⁰298 (in kJ) for the process Co3O4(s) → 3 Co(s) + 2 O2(g) from the...

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Question

Calculate ΔH⁰298 (in kJ) for the process Co3O4(s) → 3 Co(s) + 2 O2(g) from the following information.

Co(s) + 1/2 O2(g) → CoO(s) ΔH⁰298 = −237.9 kJ

3 CoO(s) + 1/2 O2(g) → Co3O4(s) ΔH⁰298 = −177.3 kJ

Please show detailed work and an explanation.

Answer 1

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