The internal energy of a system changes because the system gains 156 J of heat and performs 309 J of work. In returning to its initial state, the system loses 124 J of heat. During this return process, what work is involved? If the work is done by the system, then give the work involved as a positive number. If the work is done on the system, then give the work involved as a negative number. Number i Units

The internal energy of a system changes because the system gains 156 J of heat and performs 309 J of work. In returning to its initial state, the system loses 124 J of heat. During this return process, what work is involved? If the work is done by the system, then give the work involved as a positive number. If the work is done on the system, then give the work involved as a negative number. Number i Units

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter21: Heat And The First Law Of Thermodynamics

Section: Chapter Questions

Problem 11PQ

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