REFRIGERANT
TEMP
_____________________
TEMP
______________________
TEMP
________________________
°F
12
22
134a
502
°F
12
22
134a
502
°F
12
22
134a
502
-60
19.0
12.0
7.2
12
15.8
34.7
13.2
43.2
42
38.8
71.4
37.0
83.8
-55
17.3
9.2
3.8
13
16.4
35.7
13.8
44.3
43
39.8
73.0
38.0
85.4
-50
15.4
6.2
0.2
14
17.1
36.7
14.4
45.4
44
40.7
74.5
39.0
87.0
-45
13.3
2.7
1.9
15
17.7
37.7
15.1
46.5
45
41.7
76.0
40.1
88.7
-40
11.0
0.5
14.7
4.1
16
18.4
38.7
15.7
47.7
46
42.6
77.6
41.1
90.4
-35
8.4
2.6
12.4
6.5
17
19.0
39.8
16.4
48.8
47
43.6
79.2
42.2
92.1
-30
5.5
4.9
9.7
9.2
18
19.7
40.8
17.1
50.0
48
44.6
80.8
43.3
93.9
-25
2.3
7.4
6.8
12.1
19
20.4
41.9
17.7
51.2
49
45.7
82.4
44.4
95.6
-20
0.6
10.1
3.6
15.3
20
21.0
43.0
18.4
52.4
50
46.7
84.0
45.5
97.4
-18
1.3
11.3
2.2
16.7
21
21.7
44.1
19.2
53.7
55
52.0
92.6
51.3
106.6
-16
2.0
12.5
0.7
18.1
22
22.4
45.3
19.9
54.9
60
57.7
101.6
57.3
116.4
-14
2.8
13.8
0.3
19.5
23
23.2
46.4
20.6
56.2
65
63.8
111.2
64.1
126.7
-12
3.6
15.1
1.2
21.0
24
23.9
47.6
21.4
57.5
70
70.2
121.4
71.2
137.6
-10
4.5
16.5
2.0
22.6
25
24.6
48.8
22.0
58.8
75
77.0
132.2
78.7
149.1
-8
5.4
17.9
2.8
24.2
26
25.4
49.9
22.9
60.1
80
84.2
143.6
86.8
161.2
-6
6.3
19.3
3.7
25.8
27
26.1
51.2
23.7
61.5
85
91.8
155.7
95.3
174.0
-4
7.2
20.8
4.6
27.5
28
26.9
52.4
24.5
62.8
90
99.8
168.4
104.4
187.4
-2
8.2
22.4
5.5
29.3
29
27.7
53.6
25.3
64.2
95
108.2
181.8
114.0
201.4
0
9.2
24.0
6.5
31.1
30
28.4
54.9
26.1
65.6
100
117.2
195.9
124.2
216.2
1
9.7
24.8
7.0
32.0
31
29.2
56.2
26.9
67.0
105
126.6
210.8
135.0
231.7
2
10.2
25.6
7.5
32.9
32
30.1
57.5
27.8
68.4
110
136.4
226.4
146.4
247.9
3
10.7
26.4
8.0
33.9
33
30.9
58.8
28.7
69.9
115
146.8
242.7
158.5
264.9
4
11.2
27.3
8.6
34.9
34
31.7
60.1
29.5
71.3
120
157.6
259.9
171.2
282.7
5
11.8
28.2
9.1
35.8
35
32.6
61.5
30.4
72.8
125
169.1
277.9
184.6
301.4
6
12.3
29.1
9.7
36.8
36
33.4
62.8
31.3
74.3
130
181.0
296.8
198.7
320.8
7
12.9
30.0
10.2
37.9
37
34.3
64.2
32.2
75.8
135
193.5
316.6
213.5
341.2
8
13.5
30.9
10.8
38.9
38
35.2
65.6
33.2
77.4
140
206.6
337.2
229.1
362.6
9
14.0
31.8
11.4
39.9
39
36.1
67.1
34.1
79.0
145
220.3
358.9
245.5
385.0
10
14.6
32.8
11.9
41.0
40
37.0
68.5
35.1
80.5
150
234.6
381.5
262.7
408.4
11
15.2
33.7
12.5
42.1
41
37.9
70.0
36.0
82.1
155
249.5
405.1
280.7
432.9
A cylinder with 1,500 sq. in. of internal surface contains R-22 and is in a service truck body at 120°F. What is the total outward force of the refrigerant against the inner wall of the cylinder in tons of pressure?
A. 202.64
B. 226.61
C. 194.92
D. 145.71
Answer: C
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