31. If 4 kg of steam 12 bar, 260 deg C expand into the wet region to 90 deg C in a polytropic process where pv1.156 = c, find (a) yz, deta H, delta U, delta S, (b) √ pdV, (c)-S Vdp, (d) W for nonflow, and (e) W for steady flow if delta K = -3kJ/kg. What does - Vdp represent in this process? (f) Find Q from steady flow and also from nonflow energy equations. Use Item B 16 (SI).

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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Please answer (a), (b), (c).

Enthalpy kJ/kg
4:5
4200
4100
4000
3900
3800
3700
3600
3500
3400
3300
3200
3100
3000
2900
2800
2700
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2500
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2100
2000
4.5
5.0
BX0
BAZ ZVIZMIZ
5.0
6.0
6.0
MOSTURE
Entropy, kJ/kg K
7.0
7.0
Entropy, kJ/kg K
8.0
8.0
(334
9.0
560
#***
9.5
TEMPERATURE C
9.0
4200
4100
4000
3900
3800
3700
3600
3500
3400
3300
3200
3100
3000
2900
2800
2700
2600
2500
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2300
2200
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2000
9.5
Enthalpy kJ/kg
Transcribed Image Text:Enthalpy kJ/kg 4:5 4200 4100 4000 3900 3800 3700 3600 3500 3400 3300 3200 3100 3000 2900 2800 2700 2600 2500 2400 2300 2200 2100 2000 4.5 5.0 BX0 BAZ ZVIZMIZ 5.0 6.0 6.0 MOSTURE Entropy, kJ/kg K 7.0 7.0 Entropy, kJ/kg K 8.0 8.0 (334 9.0 560 #*** 9.5 TEMPERATURE C 9.0 4200 4100 4000 3900 3800 3700 3600 3500 3400 3300 3200 3100 3000 2900 2800 2700 2600 2500 2400 2300 2200 2100 2000 9.5 Enthalpy kJ/kg
31. If 4 kg of steam 12 bar, 260 deg C expand into the wet region to 90 deg C in a polytropic process
where pV1.156 = c, find (a) yz, deta H, delta U, delta S, (b) pdV, (c) -f Vdp, (d) W for nonflow, and (e) W
for steady flow if delta K = -3kJ/kg. What does - Vdp represent in this process? (f) Find Q from steady
flow and also from nonflow energy equations. Use Item B 16 (SI).
Transcribed Image Text:31. If 4 kg of steam 12 bar, 260 deg C expand into the wet region to 90 deg C in a polytropic process where pV1.156 = c, find (a) yz, deta H, delta U, delta S, (b) pdV, (c) -f Vdp, (d) W for nonflow, and (e) W for steady flow if delta K = -3kJ/kg. What does - Vdp represent in this process? (f) Find Q from steady flow and also from nonflow energy equations. Use Item B 16 (SI).
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