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If the column of water in the water barometer rose to a height of 39 feet what would the atmospheric pressure be in mm Hg?
Wiki User
∙ 11y ago
Given: 39ft. H2O
Conversions you can look up or know: 1ft=12in
1in=25.4mm
1mmHg=13.6mm H2O
39ft H2O (12in H2O/1ft H2O)(25.4mm H2O/1in H2O)(1mm Hg/13.6mm Hg)=
874.0588235 in calculator, but 874 with sig figs.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoGiven: 39ft. H2O
Conversions you can look up or know: 1ft=12in
1in=25.4mm
1mmHg=13.6mm H2O
39ft H2O (12in H2O/1ft H2O)(25.4mm H2O/1in H2O)(1mm Hg/13.6mm Hg)=
874.0588235 in calculator, but 874 mmHg with sig figs.
Wiki User
∙ 12y agoIf the column of water in the water barometer rose to a height of 35 feet, what would the atmospheric pressure be in mm Hg?
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If a barometer reads 535 mm Hg what is the atmospheric pressure expressed in centimeters of mercury?
mmHg represents the height of a column of mercury (Hg) in millimeters (mm) (as opposed to inches of mercury (inHg)). Since there are 10 mm (millimeters) in a centimeter, simply divide the mmHg by 10 and you find that 535mmHg is 53.5 centimeters Hg (cHg?).
A long glass tube sealed at one end that is filled with water has an inner diameter of 10 mm the tube and an atmospheric pressure is 755 mmHg how high is the column of water?
13.6 times the height of the mercury.
A glass column is filled with mercury and inverted in a pool of mercuryThe mercury column stabilizes at a height of 735 mm above the pool of mercuryWhat is the pressure of the atmosphere?
1.034013605
What happens if you use water instead of mercury in determination of atmospheric pressure?
I'm not sure if this answer is the kind of answer you're looking for, but basically, you would have to use a much larger amount of water than mercury to get an accurate reading of atmospheric pressure. This is because water is not nearly as dense as mercury, so it takes much less atmospheric pressure to raise the water up the tube in a water barometer. This results in water rising much more easily than mercury. Obviously, then, a water barometer would have to be much larger than a mercury one. Since mercury is more dense than water, mercury barometers are much smaller. So, if you put water in a mercury barometer instead of mercury, the reading you get would be way too high.Air pressure at sea level is about 14.7 pounds per square inch (psi) and can push a column of water almost 33 feet high, but it can only push mercury 30 inches high. Roughly, ever inch of mercury equals a foot of water.
What happens when the mercury in barometer or manometer is replaced by water or any other less dense liquid than water?
Since water is lighter than mercury, this means the height will differ. The denser (high relative density) the fluid, the shorter the height. If the fuild is light such as water its height will be much higher than that of mercury. Also, the denser the material is the higher the pressure.
Why does the height of the column in a barometer changes as atmospheric pressure changes?
As the atmospheric pressure changes, the force pushing on the surface of the liquid changes. Therefore,the height of the liquid in the tube increases as the atmospheric pressure increases.
Why does the height of the liquid column in a barometer changes as atmospheric pressure changes?
Pressure tendancies measure short term weather. The mercury in a barometer will rise with atmospheric pressure denoting fairer weather and a fall in barometric pressure warns of inclement weather.
What does a decrease in the height of the mercury column usually indicate on a barometer?
low pressure system and stormy weather
Why must a barometer be place where are no temperature extremes?
The height of the mercury column is used to measure atmospheric pressure. If the barometer is also subjected to high temperatures, the thermal expansion of the mercury column will indicate a higher pressure than is really the case. This will make the barometer readings useless.
As air pressure increases does the height of a column of mercury in a barometer increase?
Yes, as air pressure increases, the height of the column of mercury in a barometer also increases. This is because the higher air pressure pushes down on the mercury in the barometer, causing the column to rise. Conversely, lower air pressure will cause the column of mercury to fall.
What does a decrease in the height of a column in a mercury barometer mean?
air pressure is decreasing
Why water is not used as the medium for measurement of atmospheric pressure?
Purely a matter of convenience. A water barometer is entirely feasible, but the column height at normal atmospheric pressure is over 32 feet tall. In order to make the barometer more compact, it's convenient to use the heaviest available liquid. Mercury has a little more than 13 times the density of water, so the column height in a mercury barometer is only about 30 inches tall, making for a much more manageable instrument.
A decrease in the height of a column in a mercury barometer means that .'s surface?
When air pressure increases, the mercury in a barometer rises.
Antique aneroid barometer has a scale of 28 to 31 what units are these?
A meterological type of barometer uses a column of mercury that is supported by atmosperic pressure. The height of this column varies with the atmospheric pressure and was at one time measured off in inches in the range of about 28 to 31 "inches of mercury". The scale now used is Millibars both in aneroid and mercury barometers.
What would happen to a mercury barometer when the air pressure is getting lower?
The height of the column of mercury would be lower.
When air pressure increases the liquid in a mercury barometer would what?
The height of the Mercury column would decrease.
What has the author Alexis Bouvard written?
Alexis Bouvard has written: 'On the influence of wind on the height of the barometer' -- subject(s): Meteorology, Atmospheric pressure
