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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

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

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter13: Spontaneous Processes And Thermodynamic Equilibrium
Section: Chapter Questions
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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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