A piston-cylinder device initially contains 0.6 m3 of saturated water vapor at 250 kPa. At this state, the piston is resting on a set of stops, and the mass of the piston is such that a pressure of 300 kPa is required to move it. Heat is now slowly transferred to the steam until the volume becomes 1.5 m3. Use the data from the steam tables. Determine the final temperature. (You must provide an answer before moving on to the next part.) The final temperature is °C.
A piston-cylinder device initially contains 0.6 m3 of saturated water vapor at 250 kPa. At this state, the piston is resting on a set of stops, and the mass of the piston is such that a pressure of 300 kPa is required to move it. Heat is now slowly transferred to the steam until the volume becomes 1.5 m3. Use the data from the steam tables. Determine the final temperature. (You must provide an answer before moving on to the next part.) The final temperature is °C.
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter2: Matter And Energy
Section: Chapter Questions
Problem 17RQ: At a constant pressure, how does a volume of gas vary with respect to the absolute temperature?
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Transcribed Image Text:890
PROPERTY TABLES AND CHARTS
TABLE A-5
Saturated water–Pressure table
Specific volume
m'/kg
Internal energy,
Enthalpy,
kJ/kg
Entropy,
kJ/kg-K
kJ/kg
St.
liquid, Evap., vapor,
h,
Sat.
Sat.
Sat.
Sat.
Sat.
Sat.
Sat.
St.
Press.,
liquid, Evap., vapor,
temp., liquid,
T "C v,
vapor,
liquid, Evap.,
vapor,
P kPa
U,
1.0
6.97
13.02
0.001000 129.19
29.302 2355.2 2384.5
29.303 2484.4
2513.7
2524.7
0.1059
8.8690
8.9749
8.8270
8.7227
8.6421
1.5
0.001001 87.964
54.686 2338.1 2392.8
54.688
2470.1
0.1956
8.6314
2.0
2.5
17.50
21.08
0.001001 66.990
0.001002 54.242
73.431 2325.5 2398.9
88.422 2315.4 2403.8
73.433 2459.5 2532.9
88.424
0.2606 8.4621
2451.0 2539.4
0.3118 8.3302
3.0
24.08
0.001003 45.654
100.98
2306.9 2407.9
100.98
2443.9
2544.8
0.3543 8.2222 8.5765
4.0
28.96
0.001004 34.791
0.001005 28.185
0.001008 19.233
121.39 2293.1 2414.5
121.39 2432.3 2553.7
0.4224 8.0510
8.4734
5.0
7.5
32.87
40.29
137.75
168.74
2282.1 2419.8
2261.1 2429.8
137.75
168.75 2405.3
2423.0 2560.7
2574.0
0.4762 7.9176
0.5763 7.6738
8.3938
8.2501
10
45.81
53.97
0.001010 14.670
191.79 2245.4 2437.2
191.81
2392.1
2583.9
0.6492 7.4996
8.1488
15
0.001014 10.020
225.93
2222.1
2448.0
225.94 2372.3 2598.3
0.7549 7.2522
8.0071
20
25
60.06
64.96
0.001017 7.6481
0.001020 6.2034
251.40
271.93
2204.6 2456.0
2190.4 2462.4
251.42
271.96 2345.5
2357.5 2608.9
2617.5
0.8320 7.0752
0.8932 6.9370
7.9073
7.8302
30
69.09
0.001022 5.2287
289.24 2178.5 2467.7
289.27
2335.3 2624.6
0.9441 6.8234
7.7675
40
75.86
0.001026 3.9933
317.58
2158.8 2476.3
317.62 2318.4 2636.1
1.0261 6.6430
7.6691
50
81.32
0.001030 3.2403
340.49
2142.7 2483.2
340.54
2304.7
2645.2
1.0912 6.5019
7.5931
75
91.76
0.001037 2.2172
384.36 2111.8
2496.1
384.44
2278.0 2662.4
1.2132 6.2426
7.4558
100
0.001043 1.6941
99.61
101.325 99.97
105.97
111.35
417.40
2088.2 2505.6
417.51
2257.5 2675.0
1.3028 6.0562
7.3589
0.001043 1.6734
418.95
2087.0 2506.0
419.06 2256.5 2675.6
1.3069 6.0476
7.3545
1.3741
125
150
0.001048 1.3750
0.001053 1.1594
444.23
466.97
2068.8 2513.0
444.36
467.13
2240.6
2684.9
2226.0 2693.1
5.9100
7.2841
7.2231
2052.3 2519.2
1.4337 5.7894
175
116.04
0.001057 1.0037
486.82 2037.7 2524.5
487.01
2213.1
2700.2
1.4850 5.6865 7.1716
200
120.21
0.001061 0.88578
504.50
2024.6 2529.1
504.71
2201.6 2706.3
1.5302 5.5968
7.1270
225
250
123.97
127.41
130.58
0.001064 0.79329
520.47
535.08
548,57
2012.7 2533.2
2001.8 2536.8
520.71
2191.0
2711.7
2181.2 2716.5
1.5706 5.5171
7.0877
0.001067 0.71873
535.35
1.6072 5.4453
7.0525
275
0.001070 0.65732
1991.6 2540.1
548.86 2172.0 2720.9
1.6408 5.3800
7.0207
300
133.52
0.001073 0.60582
561.11
1982.1 2543.2
561.43 2163.5 2724.9
1.6717 5.3200
6.9917
325
350
136.27
138.86
0.001076 0.56199
0.001079 0.52422
572.84
583.89
1973.1 2545.9
1964.6 2548.5
573.19 2155.4
584.26 2147.7
2728.6
2732.0
1.7005 5.2645
1.7274 5.2128
6.9650
6.9402
141.30
1.7526 5.1645
1.7765 5.1191
375
0.001081 0.49133
594.32
604.22
1956,6
2550.9
594.73 2140.4 2735.1
6.9171
400
143.61 0.001084 0.46242
1948.9 2553.1
604.66 2133.4 2738.1
6.8955
450
500
147.90
151.83
0.001088 0.41392
0.001093 0.37483
622.65
639.54
1934.5 2557.1
1921.2 2560.7
623.14 2120.3 2743.4
640.09
655.77
670.38
684.08
1.8205 5.0356
1.8604 4.9603
6.8561
6.8207
2108.0 2748.1
550
155.46
0.001097 0.34261
655.16
1908.8 2563.9
2096.6 2752.4
1.8970 4.8916
6.7886
6.7593
6.7322
0.001101 0.31560
600
650
158.83
161.98 0.001104 0.29260
669.72 1897.1 2566.8
1886.1
2085.8
2075.5
2756.2
2759.6
1.9308 4.8285
1.9623
4.7699
683.37
2569.4
697.00
709.24
700
164.95
0.001108 0.27278
696.23
1875.6 2571.8
2065.8 2762.8
1.9918 4.7153 6.7071
750
167.75
0.001111 0.25552
708.40
1865.6 2574.0
2056.4
2765.7
2.0195 4.6642
6.6837
Transcribed Image Text:Required information
A piston-cylinder device initially contains 0.6 m3 of saturated water vapor at 250 kPa. At this state, the piston is resting on
a set of stops, and the mass of the piston is such that a pressure of 300 kPa is required to move it. Heat is now
slowly transferred to the steam until the volume becomes 1.5 m3. Use the data from the steam tables.
Determine the final temperature. (You must provide an answer before moving on to the next part.)
The final temperature is
°C.
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