Sulfur reacts with oxygen to form sulfur dioxide (SO2(g), Delta. Hf = –296.8 kJ/mol) according to the equation below.

Upper S (s) plus upper O subscript 2 (g) right arrow upper S upper o subscript 2 (g).

What is the enthalpy change for the reaction?
Use Delta H r x n equals the sum of delta H f of all the products minus the sum of delta H f of all the reactants..

–593.6 kJ
–296.8 kJ
296.8 kJ
593.6 kJ

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Consider this initial-rate data at a certain temperature for the reaction described by