Answered: Prove that for an isolated system,…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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An isolated system is at rest. There is no change in the system potential energy. What is the change in the system internal energy? Use the energy balance equation to explain.
If the energy crossing the boundary of a closed system is not heat, it must be work?
Work is done on an adiabatic system due to which its velocity changes from 10 m/s to 20 m/s, elevation increases by 20 m and temperature increases by 1 K. The mass of the system is 10 kg, Cv = 100 J/kg-K and gravitational acceleration is 10 m/s² .if there is no change in any other component of the energy of the system, find out the magnitude of total work done on the system.
Energy transfer for which the sole effect on everything external to the system could have been the raising of a weight.
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Prove that for an isolated system, there is no change in internal energy.