# Determinant of the height of the mountain if the barometer shows at the foot of 760 mm Hg. at the top 670 mm Hg

May 26, 2021 | education

| With small rises, on average, for every 12 m of rise to the height, the pressure decreases by 1 mm Hg, a smaller layer of the atmosphere produces pressure.

Atmospheric pressure equal to the pressure of a column of mercury 760 mm is considered normal and equal to 101300 Pa.

Let’s find the change in atmospheric pressure:

Δp = p0-p1 = 760-670 = 90 mm Hg

To determine the change in altitude, it is necessary to multiply the change in pressure by 12 meters:

Δh = Δp * 12 = 90 * 12 = 1080 m.

The change in height is the height of our mountain.

Answer: the height of the mountain is 1080 meters.

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