Use the data given to calculate the value of ΔG°rxn at 25°C for the reaction given below. ΔG°f for CO(g) is −137.16 kJ/mol. C(graphite) + 1/2 O2(g)  CO(g)     a. −68.58 kJ   b. +137.16 kJ   c. −274.32 kJ   d. +274.32 kJ   e. −137.16 kJ

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