High-purity benzoic acid (C6H5COOH; AHrxn for combustion

Last updated: 7/30/2022

High-purity benzoic acid (C6H5COOH; AHrxn for combustion = -3227 kJ/mol) is used as a standard for calibrating bomb calorimeters. A 1.221-g sample burns in a calorimeter (heat capacity = 1365 J/°C) that contains exactly 1.350 kg of water. What temperature change is observed? °C