A volume of 1.52 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 275 K, 7.4 bar. The air receives 626 kJ by work from the paddle wheel. Assuming the ideal gas model with cv = 0.52 kJ/kg • K, determine for the air the amount of entropy produced, in J/K.

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Asked Dec 2, 2019
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A volume of 1.52 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 275 K, 7.4 bar. The air receives 626 kJ by work from the paddle wheel. Assuming the ideal gas model with cv = 0.52 kJ/kg • K, determine for the air the amount of entropy produced, in J/K.

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Expert Answer

Step 1
(4s)oUERSE
aocntel(4)oE
Entropy onerated is eaual change in entropy
ofthe univense
(as)suRRoUD Nas
(As)SYSTEm
CASONn
help_outline

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(4s)oUERSE aocntel(4)oE Entropy onerated is eaual change in entropy ofthe univense (as)suRRoUD Nas (As)SYSTEm CASONn

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Step 2
(As)s0eROUNDRS
Since the contaunen is insalated change in
surounding
entropy
Thonfore
(as)oiy
(As)S4STEM
(ASJUU
(a9umry - mG-1,mel
TI
ONIY
Since the rontaingr is gd, v,V
(ASUNIY
help_outline

Image Transcriptionclose

(As)s0eROUNDRS Since the contaunen is insalated change in surounding entropy Thonfore (as)oiy (As)S4STEM (ASJUU (a9umry - mG-1,mel TI ONIY Since the rontaingr is gd, v,V (ASUNIY

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Step 3
Gi ven V
52m,T-115K, Pr T4R40k
(tho) (rs2)m(o-87) (275)
mI4.25
help_outline

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Gi ven V 52m,T-115K, Pr T4R40k (tho) (rs2)m(o-87) (275) mI4.25

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