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04_thermo-process-example-1-2.pdf
THERMODYNAMIC PROCESS EXAMPLE #1
COMPLETE THE TABLE BELOW FOR THE PROCESS ABOVE.
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SPECIAL PROCESS |
Q (J) |
W (J) |
ΔU (J) |
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A à B |
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B à C |
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C à A |
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TOTAL |
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THERMODYNAMIC PROCESS EXAMPLE #2
A mole of an ideal gas starts at ½ atmosphere and 1.00 m3 (Point A). The gas pressure increases by 2.5 atm due to an isochoric process (to POINT B). The gas then expands under a linear process to a volume of 3.0 m3 and its original pressure (POINT C). Finally the gas contracts under an isobaric process back to its original volume (BACK TO POINT A).
1 2 3
Volume (m3)
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Point |
P (kPa) |
V (m3) |
T (K) |
U (kJ) |
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A |
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B |
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C |
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Step |
U (kJ) |
Q (kJ) |
W (kJ) |
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A – B |
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B – C |
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C - A |
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Cycle |
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