1. The problem statement, all variables and given/known data 2. Relevant equations ΔH rxn = ΔH products - ΔH reactants ΔU = q + w 3. The attempt at a solution Pretty overwhelmed with the entire problem. Since the ΔH's of all reactants and products were in the literature for the reference temperature of 298.15 K, I was able to plug them in and get the value for that temperature. I am not sure how it changes with temperature increase? Can anyone point me in the right direction?