The following substances undergo complete combustion in a bomb calorimeter. The calorimeter assembly has a heat capacity of 5.136 kJ/°C. In each case, what is the final temperature if the initial water temperature is 22.43 °C?

(a) 0.3268 g caffeine, C₈H₁₀O₂N₄ (heat of combustion = -1014.2 kcal/mol caffeine);

(b) 1.35 mL of methyl ethyl ketone, C₄H₈O(l), d = 0.805 g/mL (heat of combustion = -2444 kJ/mol methyl ethyl ketone).