In a bomb calorimeter the reaction takes place in a sealed steel vessel. Which quantity does the heat measured correspond to directly?
Correct answer A. ΔU, the change in internal energy
Explanation
A bomb calorimeter works at constant volume, so no pressure-volume work is done and qv = ΔU. ΔH is then obtained using ΔH = ΔU + ΔnRT.
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