The North American record for highest recorded barometric pressure is 31.85 in. Hg, set in 1989 in Northway, Alaska. Convert this pressure to:
(a) millimeters of mercury
Here, we are going to convert the given pressure to different units.
Given pressure = 31.85 in. Hg
Converting inches to milimeters, we get,
1 inch = 25.4 mm
Therefore, 31.85 inches = 25.4 x 31.85 mm
= 809(approx.) mm
Thus, 31.85 in Hg = 809 millimeters of mercury.
Now, 1 atm = 760 mm Hg
Therefore, 809 mm Hg = 809 / 760 atm
= 1.064 atm
Thus, 31.85 in Hg = 1.064 atmospheres.