The same reaction, with exactly the same amount of reactant, is conducted in a bomb calorimeter and in a coffee-cup calorimeter. In one of the calorimeters, q_rxn = -12.5 kJ and in the other q_rxn = -11.8 kJ. Which value was obtained in the bomb calorimeter? (Assume that the reaction has a positive ΔV in the coffee-cup calorimeter.)

(a) q_rxn = -12.5 kJ 

(b) q_rxn = -11.8 kJ