Thermodynamics processes
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The figure below shows how 8 moles of a monatomic ideal gas follows the three-part cycle, the first part of which involves an isothermal expansion from point A, where V = 15 m3, to point B, where V = 90 m3.
(a) Provide the missing entries in the following table.
Q(J) W(J) ΔU(J)
A>B ____ ____ ____
B>C ____ ____ ____
C>A ____ ____ ____
(b) What is the efficiency of this cycle?
I have attached the picture
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Solution Summary
The 7 pages solution explains the first law of thermodynamics and how it is implemented in thermodynamical process (isothermal, isochoric and isobaric).
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The first law of thermodynamics is a conservation of energy law. It simply states that the change in the internal energy of the system is the heat flowing into the system minus any energy the system spent as work W:
(1.1)
Work is defined as:
(1.2)
Where P is the pressure and V is the volume.
From state A to state B, the process is an isotherm. This means that the temperature is constant.
This immediately implies that there is no change in internal energy since internal energy depends only on the ...
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