3. Imagine you are measuring air pressure of an open area using an apparatus looking like the one on the right: A long glass

Question

3. Imagine you are measuring air pressure of an open area
using an apparatus looking like the one on the right: A long
glass tube, sealed at one end, has an inner diameter of 10.0
mm. You consider choosing a liquid between mercury and
water to fill this apparatus to measure air pressure. (density
of Hg = 13.6 g/mL, density of water = 1.00 g/mL)
a) If the atmospheric pressure is 1.1 atm, how high (in
meters) is the column of mercury in the tube?
b) If you fill this apparatus with water, how high is the column of water in the tube?
c) Based on your answer to a) and b), explain why mercury is a better option to
measure air pressure than water.

Kunduz · Accepted Answer

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