part of the solar system: is the éarth in space an isothermal or an adiabatic system? Explain your answer. (b) In cold winter: in one room there is an electric heater, which is left plugged in and working. Is this a heat or work interaction with the system? Take the entire room, including the electric heater, as the system.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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Task 1 from a to b

Task 1
(a) Look at planet earth in space as part of the solar system: is the earth in space an isothermal
or an adiabatic system? Explain your answer.
(b) In cold winter: in one room there is an electric heater, which is left plugged in and working.
Is this a heat or work interaction with the system? Take the entire room, including the electric
heater, as the system.
(c) Which process requires more energy: completely vaporizing 100 kg of saturated liquid water
at 1 atm pressure or completely vaporizing 100 kg of saturated liquid water at 5 atm pressure?
(d) For a cycle, is the net work necessarily zero? For what kinds of systems will this be the case?
Transcribed Image Text:Task 1 (a) Look at planet earth in space as part of the solar system: is the earth in space an isothermal or an adiabatic system? Explain your answer. (b) In cold winter: in one room there is an electric heater, which is left plugged in and working. Is this a heat or work interaction with the system? Take the entire room, including the electric heater, as the system. (c) Which process requires more energy: completely vaporizing 100 kg of saturated liquid water at 1 atm pressure or completely vaporizing 100 kg of saturated liquid water at 5 atm pressure? (d) For a cycle, is the net work necessarily zero? For what kinds of systems will this be the case?
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