冷氣數學不識??幫忘??幫忘??

我重新做, 因為看漏了(絕對)這兩字, 絕對 = 錶壓 + 1 atmosphere, 錶壓有正負數, Sorry 我無法填表
Conversion factor for pressure unit:

1 atmosphere = 101.325 kPa = 1.01325 bar = 14.696 psi = 760 mm Hg = 29.921 in. Hg
Note: 如果無(絕對)這兩字, 即是錶壓. 0.9 bar 即是代表 0.9 bar (錶壓)

120 psi = ? kPa
120 psi = (101.325 kPa/14.696 psi)(120 psi) = 827.37 kPa
120 psi = 827.37 kPa

120 psi = ? bar (絕對)
120 psi = (1.01325 bar/14.696 psi)(120 psi) = 8.274 bar
120 psi = 8.274 bar + 1.01325 bar = 9.28725 bar (絕對)
120 psi = 9.28725 bar (絕對)

75 mm Hg = ? bar (絕對)
75 mm Hg = (1.01325 bar/760 mm Hg)(75 mm Hg) = 0.09999 bar
75 mm Hg =0.09999 bar + 1.01325 bar = 1.11324 bar (絕對)
75 mm Hg = 1.11324 bar (絕對)

75 mm Hg = ? psi
75 mm Hg = (14.696 psi/760 mm Hg)(75 mm Hg) = 1.450 psi
75 mm Hg =1.450 psi

29.8 in Hg = ? kPa
29.8 in Hg = (101.325 kPa /29.921 in Hg)(29.8 in Hg) = 100.91 kPa
29.8 in Hg = 100.91 kPa

29.8 in Hg = ? bar (絕對)
29.8 in Hg = (1.01325 bar/29.921 in Hg)(29.8 in Hg) = 1.0091 bar
29.8 in Hg = 1.0091 bar + 1.01325 bar = 2.02235 bar (絕對)
29.8 in Hg = 2.02235 bar (絕對)

0.4 bar (絕對) = ? kPa
0.4 bar ((絕對) = 0.4 bar - 1.01325 bar = -0.61325 bar
0.4 bar (絕對) = (101.325kPa/1.01325bar(- 0.61325 bar) = - 61.325 kPa
0.4 bar (絕對) = - 61.325 kPa

0.4 bar (絕對) = -0.61325 bar = ? psi
0.4 bar (絕對) = (14.696 psi /1.01325bar(- 0.61325 bar) = - 8.8941 psi
0.4 bar (絕對) = - 8.8941 psi