The average height of a column of mercury (Hg)in a barometer at sea level is
A) 760 mm (76 cm).
B) 1013 inches.
C) dependent on the temperature.
D) 29.00 millibars.
E) 32.01 inches.

Question

The average height of a column of mercury (Hg)in a barometer at sea level is
A) 760 mm (76 cm).
B)	1013 inches.
C)	dependent on the temperature.
D)	29.00 millibars.
E)	32.01 inches.

Quizplus · Accepted Answer

The average height of a column of mercury in a barometer at sea level is 760 mm or 76 cm. This is because atmospheric pressure at sea level is defined as 1 atmosphere (ATM) which is equivalent to 760 mmHg or 101.3 kPa. Other options can be ruled out as they are not accurate or relevant in this context.

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