On the top of a mountain 3.5 km high. pressure 720 mm. rt. Art. What is the pressure from the foot?

3.5 km = 3500 meters.

We accept the value of the change in the mercury column by 1 millimeter with an increase in height for every 10.5 meters.

In this case, the pressure difference between the top and the bottom of the mountain will be:

3500 / 10.5 = 333 1/3 mm Hg

Find the pressure at the foot.

To do this, add a difference equal to 333 1/3 mm Hg to the atmospheric pressure at the top of the mountain.

In this case, we get:

720 +333 1/3 = 1053 1/3 mm Hg

Answer: The atmospheric pressure at the foot of the mountain is 1053 1/3 mm Hg.