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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

Physical Chemistry
Physical Chemistry
2nd Edition
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Ball, David W. (david Warren), BAER, Tomas
Chapter1: Gases And The Zeroth Law Of Thermodynamics
Section: Chapter Questions
Problem 1.8E: A pot of cold water is heated on a stove, and when the water boils, a fresh egg is placed in the...
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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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