for example which pulls a stronger vacuum a pump creating 20hg or one creating 30hg?
this is for business related purposes so if you could direct me to a source of this info to verify it would be greatly appreciated! (i cant seem to find it in my searching) thank you
2006-09-03 07:37:21 · 4 answers · asked by jasons_blade 1 in Science & Mathematics ➔ Engineering
30Hg pump pulls stronger vacuum. That means that if hooked to a straight tube filled with mercury it could pull the mercury up 30".
2006-09-03 07:45:41 · answer #1 · answered by Franklin Marek 1 · 0⤊ 0⤋
Lower Hg Number.
2006-09-03 14:49:38 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 0⤋
There will not be clear answers for tedious questions. Try to ask the question with clear data.
20 hg and 30 hg are what? Millimeters, centimeters or inches? Further, is it gauge vacuum or absolute?
Lowest possible vacuum corresponds to -760mm hg gauge or -76 cm hg gauge or -29.92 inches hg gauge. In all cases this is 0 (zero).
Suppose, your readings are in centimeters of mercury column and gauge, then reading 20(actually -20) corresponds to 740 mm abs and 30(actually -30) corresponds to 730 mm abs. 30 is better in this case. If the readings 20 and 30 are in absolute units, then 20 is better vacuum.
2006-09-04 04:16:22 · answer #3 · answered by absolutezero 2 · 0⤊ 0⤋
30 hg is the best. Actually you can't do better than 29.90 hg unless you work in a lab.
2006-09-03 14:40:21 · answer #4 · answered by scrambledmolecues 3 · 0⤊ 0⤋