The enthalpy of formation for C6 H6 (I) is 49.0 kJ/mol. Consider the following reaction.
6 upper C (s, graphite) + 3 upper H subscript 2 (g) right arrow upper C subscript 6 upper H subscript g (l).
Is the reaction endothermic or exothermic, and what is the enthalpy of reaction?
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