Example 4:
Figure above shows a mercury barometer whereby the atmospheric pressure is 760 mm Hg on a particular day. Determine the pressure at point
a. A,
b. B,
c. C.
[Density of Mercury = 13 600 kg/m³]
Answer:
a.
b.
c.
Figure above shows a mercury barometer whereby the atmospheric pressure is 760 mm Hg on a particular day. Determine the pressure at point
a. A,
b. B,
c. C.
[Density of Mercury = 13 600 kg/m³]
Answer:
a.
PA = 0
b.
PB = 50 cmHg
or
PB = hρg = (0.50)(13600)(10) = 68 000 Pa
c.
PC = 76 cmHg
or
PC = hρg = (0.76)(13600)(10) = 103 360 Pa
