40.0 J of heat is transferred into a system, while it does 10.0 J of work. Later, 25.00 J of heat is transferred out of the system while 4.00 J of work is done on the system. a. What is the net change in internal energy of the system? b. Briefly explain the sign convention applied in thermodynamics regarding energy transfer!

40.0 J of heat is transferred into a system, while it does 10.0 J of work. Later, 25.00 J of heat is transferred out of the system while 4.00 J of work is done on the system. a. What is the net change in internal energy of the system? b. Briefly explain the sign convention applied in thermodynamics regarding energy transfer!

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter4: Energy And Chemical Reactions

Section: Chapter Questions

Problem 21QRT

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