2006-07-07 15:11:57 · 11 answers · asked by donnie 1 in Science & Mathematics ➔ Chemistry
mercury
2006-07-07 15:14:13 · answer #1 · answered by this old loser 3 · 0⤊ 0⤋
Mercury is used because of it's high density. The air pressure supports a column about 30 inches high. If you make a barometer with water as the fluid you need a column more like 32 feet, but that would work as well.
2006-07-07 22:18:17 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Pressure from a barometer is listed as mm of mercury (mm Hg). While Hg is rarely used today in anything due to it's poisonous effects, the label mmHg is still used when describing the atmospheric pressure reading from a barometer.
2006-07-07 22:18:14 · answer #3 · answered by Darefooter 2 · 0⤊ 0⤋
The simplest barometers used water in a glass container.
2006-07-07 22:15:36 · answer #4 · answered by im2irish4u 2 · 0⤊ 0⤋
Good 'ol Hg, mercury, quicksilver, etc. Why? Because it is dense, it responds to changes in pressure minimally, so barometers can be several inches high to measure changes in pressure, instead of several tens of feet high.
2006-07-07 22:17:58 · answer #5 · answered by Chx 2 · 0⤊ 0⤋
Mercury or water. Normaly Mercury. You can use air pressure and reference to a mercury standard.
2006-07-07 22:15:44 · answer #6 · answered by cpw321cpw 1 · 0⤊ 0⤋
Its Mercury it messures the pressure in the air in mmHg or torr
2006-07-07 22:37:31 · answer #7 · answered by j r 1 · 0⤊ 0⤋
Mercury or water.
2006-07-07 22:32:23 · answer #8 · answered by Cols 3 · 0⤊ 0⤋
mercury, and sometimes alcohol
2006-07-14 11:04:22 · answer #9 · answered by shiara_blade 6 · 0⤊ 0⤋
water.
2006-07-07 22:15:54 · answer #10 · answered by ole_lady_93 5 · 0⤊ 0⤋