A constant volume calorimeter was calibrated by carrying out a reaction known to release 3.50 kJ of heat in 0.200 L of solution in the calorimeter (q=-3.50 kJ), resulting in temperature rise of 7.32 degrees celsius. In a subsequent experiment, 100.0 mL of .200 M KOH (aq) were mixed in the same calorimeter and the temperature rose by 2.49 degrees celsius. What is the change in internal energy of the reaction mixture as a result of neutralization reaction?

Question

A constant volume calorimeter was calibrated by carrying out a reaction known to release 3.50 kJ of heat in 0.200 L of solution in the calorimeter (q=-3.50 kJ), resulting in temperature rise of 7.32 degrees celsius. In a subsequent experiment, 100.0 mL of .200 M KOH (aq) were mixed in the same calorimeter and the temperature rose by 2.49 degrees celsius. What is the change in internal energy of the reaction mixture as a result of neutralization reaction? 

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