Atmospheric pressure on a particular day supports 29.9 inches of Hg. What is this pressure in atm's?
(1 inch Hg = 2.54 cm Hg; 1 atm = 760 mm Hg)

Question

Quizplus · Accepted Answer

First, we need to convert inches of Hg to cm of Hg:

29.9 in Hg x 2.54 cm Hg/in Hg = 75.946 cm Hg

Next, we can use the given conversion factor to convert cm of Hg to atm:

75.946 cm Hg x (1 atm/760 mm Hg) x (1 m/100 cm) = 0.999 atm

Therefore, the answer is B.

Atmospheric Pressure on a Particular Day Supports 29