Water is being heated in a closed pan on top of a range while being stirred by a paddle wheel. During the process, 30 kJ of heat is transferred to the water, and 5 kJ of heat is lost to the surrounding air. The paddle-wheel work amounts to 500 N ∙ m. Determine the final energy of the system if its initial energy is 10 kJ.
Water is being heated in a closed pan on top of a range while being stirred by a paddle wheel. During the process, 30 kJ of heat is transferred to the water, and 5 kJ of heat is lost to the surrounding air. The paddle-wheel work amounts to 500 N ∙ m. Determine the final energy of the system if its initial energy is 10 kJ.
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter17: Energy In Thermal Processes: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 79P
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Question
Water is being heated in a closed pan on top of a
range while being stirred by a paddle wheel. During the process,
30 kJ of
heat is lost to the surrounding air. The paddle-wheel work
amounts to 500 N ∙ m. Determine the final energy of the system
if its initial energy is 10 kJ.
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