A 1.0 g sample of octane is burned in a bomb calorimeter that contains 1200 mL of water with an initial temperature of 25.0 °C. The final temperature of the water following the reaction was measured to be 33.2 °C. Given a specific heat capacity of water of 4.184 J/g °C and C, of the calorimeter value of 837 J/°C, determine the molar change in internal energy (AUm) of the reaction in kJ/mol. (Hint: qrxn= -(qwater +qcalorimeter))

A 1.0 g sample of octane is burned in a bomb calorimeter that contains 1200 mL of water with an initial temperature of 25.0 °C. The final temperature of the water following the reaction was measured to be 33.2 °C. Given a specific heat capacity of water of 4.184 J/g °C and C, of the calorimeter value of 837 J/°C, determine the molar change in internal energy (AUm) of the reaction in kJ/mol. (Hint: qrxn= -(qwater +qcalorimeter))

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

1) Bomb calorimetry
A 1.0 g sample of octane is burned in a bomb calorimeter that contains 1200
mL of water with an initial temperature of 25.0 °C. The final temperature of
the water following the reaction was measured to be 33.2 °C. Given a
specific heat capacity of water of 4.184 J/g °C and C, of the calorimeter
value of 837 J/ °C, determine the molar change in internal energy (AUm) of
the reaction in kJ/mol. (Hint: qrxn= -(qwater + qcalorimeter)

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