Mercury (Hg) can be used in a barometer to measure air pressure, based on how tall...
Mercury (Hg) can be used in a barometer to measure air pressure, based on how tall a column of mercury can be supported by the pressure of the atmosphere or another gas sample. The barometric reading a specific day was 743.8 mm Hg. If the interior circumference of the tube holding the mercury is 9.82 mm, what is the mass of mercury in the tube (above the pool of mercury)? The column may be treated as a cylinder. Mercury has a density of 13.55 g/mL.
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Mercury (Hg) can be used in a barometer to measure air pressure,
based on how tall...
Air pressure is measured by a barometer. One type of barometer utilizes an evacuated, calibrated tube...
Air pressure is measured by a barometer. One type of barometer utilizes an evacuated, calibrated tube inverted in a pool of mercury that is open to the atmosphere. As air pressure increases, the mercury will rise in the column until the weight of the mercury in the column equals the force exerted by the air on the surface of the pool. The barometer shown here (Figure 1) measures atmospheric pressure in millimeters of mercury (mmHg ). According to this barometer,...
A barometer can measure atmospheric pressure using the variation of pressure with depth of a fluid....
A barometer can measure atmospheric pressure using the variation of pressure with depth of a fluid. Vacuum (P 0) A glass tube is filled with mercury (p 13,600 kg/m3) and placed upside-down in a bowl that also contains mercury. O Determine the height h. Enter the value in mm but do not include the unit in your response. Pat O 1 atmosphere 1.01x105 Pa
2. The basic barometer can be used to measure the height of a building. If the...
2. The basic barometer can be used to measure the height of a building. If the barometric readings at the top and at the bottom of a building are 675 and 695 mmHg, respec- tively, determine the height of the building. Take the densi- ties of air and mercury to be 1.18 kg/m2 and 13,600 kg/mº, respectively. 3. Freshwater and seawater flowing in parallel horizon- tal pipelines are connected to each other by a double U-tube manometer, as shown in...
The column of a mercury barometer is calibrated in linear units (such as inches or millimeters)...
The column of a mercury barometer is calibrated in linear units
(such as inches or millimeters) and thus the air pressure observed
on such a barometer is reported in terms of these linear units.
This measurement of pressure can be converted to other common
pressure units. Some conversion factors are shown here.
1mm Hg = 1torr
1 atm = 760mm Hg
1 atm = 1.01325 bar
1 Pa = 10-5 bar
1 in = 2.54 cm
1 cm = 10...
am i doing this correctly? (lon 3. A barometer reading of 759.4 mm Hg corresponds to...
am i doing this correctly?
(lon 3. A barometer reading of 759.4 mm Hg corresponds to what value in atmospheres? 1769 X 4. Determine the density of dry air (in g/L) at a pressure and temperature of 0.9964 atm and 295.6 K (using the Ideal Gas law in Part B, Step 3). Density of Natural Gas
EXAMPLE 6-2 Using a Manometer to Measure Gas Pressure When the manometer in Figure 6-5(c) is...
EXAMPLE 6-2 Using a Manometer to Measure Gas Pressure When the manometer in Figure 6-5(c) is filled with liquid mercury (d = 13.6 g/cm"), the barometric pressure is 748.2 mmHg, and the difference in mercury levels is 8.6 mmHg. What is the gas pressure Pgas? Analyze We must first establish which is greater: the barometric pressure or the gas pressure. In Figure 6-5(c), the baro- metric pressure forces liquid mercury down the tube toward the gas sample. The barometric pressure...
A pitot tube is used to measure the velocity of an air stream. The air has...
A pitot tube is used to measure the velocity of an air stream. The air has a temperature of 18°C and a pressure of 105 kPa 12 mm Hg If the differential height in a mercury manometer is 12 mm and the air is incompressible, the air velocity is most nearly (A) 38 m/'s o (B) 43 m/s (C) 48 ms (D) 50ms
8. (i0 points) A manometer tube which contains mercury (Figure on the right) is used to...
8. (i0 points) A manometer tube which contains mercury (Figure on the right) is used to measure the pressure PA in the air pipe. Determine the gage pressure PA is the specific gravity of mercury SGug 13.6. The right side if the barometer is open to ambient air. Air pipe 3 m Hg 9. (10 points) When a body is accelerated under water, some of the water is also accelerated. This makes the body appear to have a larger mass...
Measurement of Pressure. An open U-tube manometer similar to Fig. 2.2-4a is being used to measure...
Measurement of Pressure. An open U-tube manometer similar to Fig. 2.2-4a is being used to measure the absolute pressure p, in a vessel containing air The pressure pb is atmospheric pressure, which is 754 mm Hg. The liquid in the manometer is water having a density of 1000 kg/m. Assume that the densityp is 1.30 kg/m and that the distance Z is very small. The reading R is 0.415 m. Calculate p, in psia and kPa. pb fluid B PB...
Problem 2: Fig. 2 shows a multi-fluid manometer used to measure the absolute pressure of the air container at A. What would be the reading L when the absolute pressure at A is 125 kPa? Mercury SG...
Problem 2: Fig. 2 shows a multi-fluid manometer used to measure the absolute pressure of the air container at A. What would be the reading L when the absolute pressure at A is 125 kPa? Mercury SG- 13.56, Oil SG 0.86. 01 Air 32 cm 18 em 35 15 cm Fig. 2 Water Mercury
Problem 2: Fig. 2 shows a multi-fluid manometer used to measure the absolute pressure of the air container at A. What would be the reading L...
A barometer can measure atmospheric pressure using the variation of pressure with depth of a fluid. Vacuum (P 0) A glass tube is filled with mercury (p 13,600 kg/m3) and placed upside-down in a bowl that also contains mercury. O Determine the height h. Enter the value in mm but do not include the unit in your response. Pat O 1 atmosphere 1.01x105 Pa
2. The basic barometer can be used to measure the height of a building. If the barometric readings at the top and at the bottom of a building are 675 and 695 mmHg, respec- tively, determine the height of the building. Take the densi- ties of air and mercury to be 1.18 kg/m2 and 13,600 kg/mº, respectively. 3. Freshwater and seawater flowing in parallel horizon- tal pipelines are connected to each other by a double U-tube manometer, as shown in...
The column of a mercury barometer is calibrated in linear units
(such as inches or millimeters) and thus the air pressure observed
on such a barometer is reported in terms of these linear units.
This measurement of pressure can be converted to other common
pressure units. Some conversion factors are shown here.
1mm Hg = 1torr
1 atm = 760mm Hg
1 atm = 1.01325 bar
1 Pa = 10-5 bar
1 in = 2.54 cm
1 cm = 10...
am i doing this correctly?
(lon 3. A barometer reading of 759.4 mm Hg corresponds to what value in atmospheres? 1769 X 4. Determine the density of dry air (in g/L) at a pressure and temperature of 0.9964 atm and 295.6 K (using the Ideal Gas law in Part B, Step 3). Density of Natural Gas
EXAMPLE 6-2 Using a Manometer to Measure Gas Pressure When the manometer in Figure 6-5(c) is filled with liquid mercury (d = 13.6 g/cm"), the barometric pressure is 748.2 mmHg, and the difference in mercury levels is 8.6 mmHg. What is the gas pressure Pgas? Analyze We must first establish which is greater: the barometric pressure or the gas pressure. In Figure 6-5(c), the baro- metric pressure forces liquid mercury down the tube toward the gas sample. The barometric pressure...
A pitot tube is used to measure the velocity of an air stream. The air has a temperature of 18°C and a pressure of 105 kPa 12 mm Hg If the differential height in a mercury manometer is 12 mm and the air is incompressible, the air velocity is most nearly (A) 38 m/'s o (B) 43 m/s (C) 48 ms (D) 50ms
8. (i0 points) A manometer tube which contains mercury (Figure on the right) is used to measure the pressure PA in the air pipe. Determine the gage pressure PA is the specific gravity of mercury SGug 13.6. The right side if the barometer is open to ambient air. Air pipe 3 m Hg 9. (10 points) When a body is accelerated under water, some of the water is also accelerated. This makes the body appear to have a larger mass...
Measurement of Pressure. An open U-tube manometer similar to Fig. 2.2-4a is being used to measure the absolute pressure p, in a vessel containing air The pressure pb is atmospheric pressure, which is 754 mm Hg. The liquid in the manometer is water having a density of 1000 kg/m. Assume that the densityp is 1.30 kg/m and that the distance Z is very small. The reading R is 0.415 m. Calculate p, in psia and kPa. pb fluid B PB...
Problem 2: Fig. 2 shows a multi-fluid manometer used to measure the absolute pressure of the air container at A. What would be the reading L when the absolute pressure at A is 125 kPa? Mercury SG- 13.56, Oil SG 0.86. 01 Air 32 cm 18 em 35 15 cm Fig. 2 Water Mercury
Problem 2: Fig. 2 shows a multi-fluid manometer used to measure the absolute pressure of the air container at A. What would be the reading L...
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