Determine the atmospheric pressure at the top of the mountain if the pressure

Determine the atmospheric pressure at the top of the mountain if the pressure at its foot is exactly 740 mm, and the height of the mountain is 3150 m.

For every 10.5 m of height, atmospheric pressure decreases by 1 mm Hg.

Decision:

3150 m / 0.5 m = 300 mm Hg (we find how much the pressure has changed from the bottom to the top);

740 mm Hg – 300 mm Hg = 440 mm Hg (we find the pressure at the top of the mountain).

Answer: the atmospheric pressure at the top of the mountain is 440 mm Hg.