To measure the caloric value of a potato chip, a sample of the potato chip was burned in an oxygen atmosphere in a bomb calorimeter and the temperature rose by 3.69 °C. When a current of 1.32 A from a 12.0 V source flowed through the same calorimeter for 125 s, the temperature rose by 4.19 °C. What is the magnitude of change in internal energy (in kJ) accompanying the combustion of the potato chip? 1.74 2.25 0.13 30.61

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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my approach was using q = I∆φ∆t and i got 1980J, converted it to kj -> q=1.98kj. using ∆U = qV , ∆U =1.98kj. is my attempt correct???

 

To measure the caloric value of a potato chip, a sample of the potato chip was burned in an oxygen
atmosphere in a bomb calorimeter and the temperature rose by 3.69 °C. When a current of 1.32 A from a
12.0 V source flowed through the same calorimeter for 125 s, the temperature rose by 4.19 °C.
What is the magnitude of change in internal energy (in kJ) accompanying the combustion of the potato
chip?
1.74
2.25
0.13
30.61
Transcribed Image Text:To measure the caloric value of a potato chip, a sample of the potato chip was burned in an oxygen atmosphere in a bomb calorimeter and the temperature rose by 3.69 °C. When a current of 1.32 A from a 12.0 V source flowed through the same calorimeter for 125 s, the temperature rose by 4.19 °C. What is the magnitude of change in internal energy (in kJ) accompanying the combustion of the potato chip? 1.74 2.25 0.13 30.61
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