At the top of the mountain, the height of the mercury column in the mercury barometer is 50 cm.

At the top of the mountain, the height of the mercury column in the mercury barometer is 50 cm. Determine the atmospheric pressure on this mountain.

Let’s translate the pressure in mm .: 50 cm Hg. = 500 mm Hg
Knowing that the pressure, which is considered normal, is 760 mm Hg. in the SI system it is equal to 101300 Pa.
Let’s find the value 1 mm. Hg in Pascals, for this we will compose the proportion:
760 – 101300;
1 – x means:
x = 101300 * 1/760 = 133.3 Pa.
Now let’s calculate our pressure:
p = 500 * 133.3 = 66.6 * 10 ^ 3 Pa.
Answer: the pressure at the top is 66.6 * 10 ^ 3 Pa or 66.6 kPa.