Problem: If the atmospheric pressure is 1.01325 bar, what will be the height of the mercury column in barometer? The density of mercury is 13600 kg/m³.
Problem: If the atmospheric pressure is 1.01325 bar, what will be the height of the mercury column in barometer? The density of mercury is 13600 kg/m³.
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Question
6.
Transcribed Image Text:as force per unit area, it has the unit of newtons per square meter (N/m²),
which is called a pascal (Pa).
UNITS OF PRESSURE
Barometer
P =
1 atm = 101.325 kPa
= 14.7
Psi
= 760
= 760
mm Hg
torr
in Hg
KPag
= 29.92
= 0
F
A
= 1.032
= 10.33
= 38.88
= 1.01325
kg/cm²
m H₂O
ft H₂O
bar
where:
1 bar = 100 kPa
Atmospheric pressure is measured by a device called a barometer; thus, the
atmospheric pressure is often referred to as the barometric pressure.
A frequently used pressure unit is the standard atmosphere, which is defined
as the pressure produced by a column of mercury 760 mm in height at 0°C
Сона = 13,595 kg/m³) under standard gravitational acceleration (g = 9.807
m/s²).
Problem:
If the atmospheric pressure is 1.01325 bar, what will be the height of the mercury column in a
barometer? The density of mercury is 13600 kg/m³.
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