A reaction occurs in a calorimeter, resulting in the starting and final temperatures shown below. What can you say about the reaction and the enthalpy change (ΔH) during the reaction?
ReactionEnergyAQ1
A. The reaction is endothermic and ΔH is positive.
B. The reaction is endothermic and ΔH is negative.
C. The reaction is exothermic and ΔH is positive.
D. The reaction is exothermic and ΔH is negative.