What is the change in internal energy (in J) of a system that does 4.50 ✕ 105 J of work while 3.00 ✕ 106 J of heat transfer occurs into the system, and 7.00 ✕ 106 J of heat transfer occurs to the environment?

What is the change in internal energy (in J) of a system that does 4.50 ✕ 105 J of work while 3.00 ✕ 106 J of heat transfer occurs into the system, and 7.00 ✕ 106 J of heat transfer occurs to the environment?

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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Concept explainers

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.

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What is the change in internal energy (in J) of a system that does 4.50 ✕ 10⁵ J of work while 3.00 ✕ 10⁶ J of heat transfer occurs into the system, and 7.00 ✕ 10⁶ J of heat transfer occurs to the environment?

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