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What is the average height of mercury in a barometer at sea level?
Wiki User
∙ 14y ago
I don't think there is a good answer to this question. Until just recently, almost nothing was known of its atmosphere. Its atmosphere is constantly being generated from its mass, but due to the heat and solar wind, it is almost immediately lost. I presume that means the pressure varies greatly from time to time, as well as from the dayside to the nightside. I hope that helps. I have something to say too! That person ^ had a good point but i have the real answer... The daily Barometric pressure on Mercury is Max Barometric Pressure: 291.0 (inHg-27)*100 Average Barometric Pressure: 291.0 (inHg-27)*100 Current Barometric Pressure: 291.0 (inHg-27)*100 my source.. http://wb9tlh.ampr.us/weather/barometric_pressure/barometer.html
Wiki User
∙ 15y ago
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What is the difference between a barometer and an anemometer?
Barometers measure altitude - ie height above sea level Anemometers measure wind speed
An aneroid barometer is different from a mercury barometer in that it?
An aneroid barometer, invented by the French 19th century engineer and inventor Lucien Vidie, uses a small, flexible metal box called an aneroid cell. This aneroid capsule (cell) is made from an alloy of beryllium and copper. The evacuated capsule (or usually more capsules) is prevented from collapsing by a strong spring. Small changes in external air pressure cause the cell to expand or contract. This expansion and contraction drives mechanical levers such that the tiny movements of the capsule are amplified and displayed on the face of the aneroid barometer.A mercury barometer has a glass tube of at least 84 cm in height, closed at one end, with an open mercury-filled reservoir at the base. The weight of the mercury creates a vacuum in the top of the tube. Mercury in the tube adjusts until the weight of the mercury column balances the atmospheric force exerted on the reservoir. High atmospheric pressure places more force on the reservoir, forcing mercury higher in the column. Low pressure allows the mercury to drop to a lower level in the column by lowering the force placed on the reservoir. Since higher temperature at the instrument will reduce the density of the mercury, the scale for reading the height of the mercury is adjusted to compensate for this effect.
The amount of gravitational potential energy that an object has depends on its weight and?
Weight, height above the ground level (or other reference level), the strength of the gravitational field.Weight, height above the ground level (or other reference level), the strength of the gravitational field.Weight, height above the ground level (or other reference level), the strength of the gravitational field.Weight, height above the ground level (or other reference level), the strength of the gravitational field.
How high would the level be in an alcohol barometer at normal atmospheric pressure?
2.5 feet or 760 milimeters
How does Mercury within a thermometer change?
The temperature in a Mercury-based thermometer is read by the level of Mercury found in the thermometer. As Mercury heats up, it expands, therefore raising the level of the Mercury of which we see as a higher temperature. On the other end, as the temperature falls, the Mercury contracts and reads at a lower temperature.
What weather will accompany a decrease in the height of the mercury column in a mercury barometer?
the atmospere can not support the greater height column and the column of mercury will drop to the level in which the atmospere can support
Where the mercury barometer is used?
at sea level to messure air.
When the height of the mercury in a barometer is 29.92 inches the barometric pressure is?
The standard sea level pressure of Earth's atmosphere - a pressure of 1 Bar or one "atmosphere".
What is an ivory point in fortins barometer?
The ivory point in a Fortin barometer is a short (typically about 1 cm) conically-shaped piece of ivory positioned with its apex pointing vertically downwards just above the surface of the mercury in the barometer's reservoir. It is positioned accurately during manufacture so that the tip of the ivory is in exactly the same horizontal plane as the zero mark of the scale which measures the height of the mercury column, and is known as the Fiducial Point. Before reading the height of the mercury column, a user of the baromerter adjusts the level of mercury in the reservoir until its surface just touches the ivory point, at which level the height scale will give an accurate reading.
What is a mercury barometer used for?
Mercury barometer is used for measuring atmospheric pressure. Because atmospheric pressure changes with distance above or below sea level, a barometer can also be used to measure altitude.
When climbing a mountain with a barometer will the mercury level decrease or increase?
decrease
When air pressure decreases the mercury in a barometer?
The mercury rises. The lower atmospheric pressure allows the mercury to drop in level.
What are the uses of mercury barometers?
Mercury barometer is used for measuring atmospheric pressure.Because atmospheric pressure changes with distance above or below sea level, a barometer can also be used to measure altitude.Read more: Uses_of_mercury_barometer
Describe how a mersury barometer measures airpressure?
A mercury barometer is a 1 meter long glass tube with the top sealed and turned upside down in a bath of mercury the pressure on the surface of the bath of mercury lifts the level of the mercury in the tube dependent on atmospheric pressure.
How tall was the column of mercury in the barometer at sea level?
760 mm mercury column
Pressure measuring instrument french invented?
The barometer was invented by Toricelli. Toricelli was a French scientist who was working on air pressure. He wanted to see what actually happened if he introduced a glass tube completely vacuumed, into a tub containing mercury. He noticed that at sea-level, the mercury rose upto 76 cms in height. This height decreased as the altitude increased. This principle was later utilized to construct a barometer. Barometer does not only measure the atmospheric pressure. It can also be used to measure the altitude of places and also to forecast weather conditions.
What does it mean by the statement pressure of gas is 13.6 cm of Hg?
at sea level mercury barometer reads 13.6cm
