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A CD player and its battery together do 500 kJ of work, and the battery also releases 250 kJ of energy as heat and the CD player re- leases 50 kJ as heat due to friction from spin- ning. What is the change in internal energy of the system, with the system regarded as the battery and CD player together?

A CD player and its battery together do 500 kJ of work, and the battery also releases 250 kJ of energy as heat and the CD player re- leases 50 kJ as heat due to friction from spin- ning. What is the change in internal energy of the system, with the system regarded as the battery and CD player together?

Chemistry
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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A CD player and its battery together do 500 kJ of work, and the battery also releases 250 kJ of energy as heat and the CD player re- leases 50 kJ as heat due to friction from spin- ning. What is the change in internal energy of the system, with the system regarded as the battery and CD player together? 1. +200 kJ 2. -700 kJ 3. -750 kJ 4.-200 kJ 5. -800 kJ
Transcribed Image Text:A CD player and its battery together do 500 kJ of work, and the battery also releases 250 kJ of energy as heat and the CD player re- leases 50 kJ as heat due to friction from spin- ning. What is the change in internal energy of the system, with the system regarded as the battery and CD player together? 1. +200 kJ 2. -700 kJ 3. -750 kJ 4.-200 kJ 5. -800 kJ
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