A “meter of water @ 4°C” is a unique unit used primarily to measure pressure. At this specific temperature, water reaches its maximum density, and the pressure exerted by a one-meter column of water is approximately 9.81 kilopascals or 0.0979 atmospheres. This scenario represents the optimal conditions for standardizing pressure measurements because the physical properties of water are most stable, reducing variances in calculations.
This unit is especially important in fields like plumbing and hydraulics, where accurate pressure measurements are crucial. Understanding these principles can lead to better designs in water distribution systems, preventing common issues such as pipe bursts or inefficient water flow, ensuring systems operate safely and efficiently.
The kilopascal (kPa) is a metric unit of pressure that often finds its application in various everyday and scientific contexts, such as meteorology, engineering, and automotive industries. One intriguing aspect of the kilopascal is its relationship to atmospheric pressure. At sea level, the standard atmospheric pressure is 101.3 kPa. This means when the weather forecast mentions a high or low-pressure system, it’s essentially describing variations in kilopascals, subtly influencing everything from weather patterns to flight dynamics.
In the world of construction and engineering, knowing a material’s tolerance in kilopascals is crucial for ensuring structural integrity and safety. For instance, the force exerted by an average car tire on the ground is about 220 kPa, showcasing kilopascals as a pivotal unit in designing components that need to withstand specific pressures. Such applications highlight its crucial role in both routine and critical decision-making processes.
Meters of water @ 4°C | Kilopascals |
---|---|
0
mH₂O
|
0
kPa
|
1
mH₂O
|
9.80665
kPa
|
2
mH₂O
|
19.6133
kPa
|
3
mH₂O
|
29.41995
kPa
|
4
mH₂O
|
39.2266
kPa
|
5
mH₂O
|
49.03325
kPa
|
6
mH₂O
|
58.8399
kPa
|
7
mH₂O
|
68.64655
kPa
|
8
mH₂O
|
78.4532
kPa
|
9
mH₂O
|
88.25985
kPa
|
10
mH₂O
|
98.0665
kPa
|
11
mH₂O
|
107.87315
kPa
|
12
mH₂O
|
117.6798
kPa
|
13
mH₂O
|
127.48645
kPa
|
14
mH₂O
|
137.2931
kPa
|
15
mH₂O
|
147.09975
kPa
|
16
mH₂O
|
156.9064
kPa
|
17
mH₂O
|
166.71305
kPa
|
18
mH₂O
|
176.5197
kPa
|
19
mH₂O
|
186.32635
kPa
|
20
mH₂O
|
196.133
kPa
|
21
mH₂O
|
205.93965
kPa
|
22
mH₂O
|
215.7463
kPa
|
23
mH₂O
|
225.55295
kPa
|
24
mH₂O
|
235.3596
kPa
|
25
mH₂O
|
245.16625
kPa
|
26
mH₂O
|
254.9729
kPa
|
27
mH₂O
|
264.77955
kPa
|
28
mH₂O
|
274.5862
kPa
|
29
mH₂O
|
284.39285
kPa
|
30
mH₂O
|
294.1995
kPa
|
31
mH₂O
|
304.00615
kPa
|
32
mH₂O
|
313.8128
kPa
|
33
mH₂O
|
323.61945
kPa
|
34
mH₂O
|
333.4261
kPa
|
35
mH₂O
|
343.23275
kPa
|
36
mH₂O
|
353.0394
kPa
|
37
mH₂O
|
362.84605
kPa
|
38
mH₂O
|
372.6527
kPa
|
39
mH₂O
|
382.45935
kPa
|
40
mH₂O
|
392.266
kPa
|
41
mH₂O
|
402.07265
kPa
|
42
mH₂O
|
411.8793
kPa
|
43
mH₂O
|
421.68595
kPa
|
44
mH₂O
|
431.4926
kPa
|
45
mH₂O
|
441.29925
kPa
|
46
mH₂O
|
451.1059
kPa
|
47
mH₂O
|
460.91255
kPa
|
48
mH₂O
|
470.7192
kPa
|
49
mH₂O
|
480.52585
kPa
|
50
mH₂O
|
490.3325
kPa
|
51
mH₂O
|
500.13915
kPa
|
52
mH₂O
|
509.9458
kPa
|
53
mH₂O
|
519.75245
kPa
|
54
mH₂O
|
529.5591
kPa
|
55
mH₂O
|
539.36575
kPa
|
56
mH₂O
|
549.1724
kPa
|
57
mH₂O
|
558.97905
kPa
|
58
mH₂O
|
568.7857
kPa
|
59
mH₂O
|
578.59235
kPa
|
60
mH₂O
|
588.399
kPa
|
61
mH₂O
|
598.20565
kPa
|
62
mH₂O
|
608.0123
kPa
|
63
mH₂O
|
617.81895
kPa
|
64
mH₂O
|
627.6256
kPa
|
65
mH₂O
|
637.43225
kPa
|
66
mH₂O
|
647.2389
kPa
|
67
mH₂O
|
657.04555
kPa
|
68
mH₂O
|
666.8522
kPa
|
69
mH₂O
|
676.65885
kPa
|
70
mH₂O
|
686.4655
kPa
|
71
mH₂O
|
696.27215
kPa
|
72
mH₂O
|
706.0788
kPa
|
73
mH₂O
|
715.88545
kPa
|
74
mH₂O
|
725.6921
kPa
|
75
mH₂O
|
735.49875
kPa
|
76
mH₂O
|
745.3054
kPa
|
77
mH₂O
|
755.11205
kPa
|
78
mH₂O
|
764.9187
kPa
|
79
mH₂O
|
774.72535
kPa
|
80
mH₂O
|
784.532
kPa
|
81
mH₂O
|
794.33865
kPa
|
82
mH₂O
|
804.1453
kPa
|
83
mH₂O
|
813.95195
kPa
|
84
mH₂O
|
823.7586
kPa
|
85
mH₂O
|
833.56525
kPa
|
86
mH₂O
|
843.3719
kPa
|
87
mH₂O
|
853.17855
kPa
|
88
mH₂O
|
862.9852
kPa
|
89
mH₂O
|
872.79185
kPa
|
90
mH₂O
|
882.5985
kPa
|
91
mH₂O
|
892.40515
kPa
|
92
mH₂O
|
902.2118
kPa
|
93
mH₂O
|
912.01845
kPa
|
94
mH₂O
|
921.8251
kPa
|
95
mH₂O
|
931.63175
kPa
|
96
mH₂O
|
941.4384
kPa
|
97
mH₂O
|
951.24505
kPa
|
98
mH₂O
|
961.0517
kPa
|
99
mH₂O
|
970.85835
kPa
|
100
mH₂O
|
980.665
kPa
|
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