A constant-volume calorimeter was calibrated by carrying out a reaction known to release 0.90 kJ of heat

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A constant-volume calorimeter was calibrated by carrying out a reaction known to release 0.90 kJ of heat in 0.60 L of solution in the calorimeter (q = –0.90 kJ), resulting in a temperature rise of 2.85°C. In a subsequent experiment, 30.0 mL of 0.20 m HClO2(aq) and 30.0 mL of 0.20 m NaOH(aq) were mixed in the same calorimeter and the temperature rose by 1.31°C. What is the change in the internal energy of the reaction mixture as a result of the neutralization reaction?

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Chemical Principles The Quest For Insight

ISBN: 9781464183959

7th Edition

Authors: Peter Atkins, Loretta Jones, Leroy Laverman

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