The average height of a column of mercury (Hg)in a barometer at sea level is
A)760 mm (76 cm).
B)1013 metres.
C)something that can not be determined without knowing air temperature.
D)29.00 millibars.
E)176.0 mm.

Question

Quizplus · Accepted Answer

The average height of a column of mercury (Hg) in a barometer at sea level is 760 mm (76 cm). This is because atmospheric pressure at sea level is defined as 1 atmosphere (atm) which is equivalent to 760 mm Hg.

The Average Height of a Column of Mercury (Hg)in a Barometer