At the surface of the Earth, atmospheric pressure is normal. What is the pressure in the mine at a depth of 240m?

With small rises, on average, for every 12 m, the pressure increases by 1 mm Hg.
Atmospheric pressure equal to the pressure of a column of mercury 760 mm is considered normal and equal to 101300 Pa.
Let’s make the proportion:
760 mm Hg = 101300 Pa
1 mm Hg = x Pa
Hence, x = 101300 * 1/760 = 133 Pa.
With a decrease, the pressure increases.
We divide the depth by 12, find how much the pressure of the mercury column has increased at this depth:
240/12 = 20 mm Hg
Mine pressure:
760 + 20 = 780 mm Hg
Let’s translate into SI system:
780 * 133 = 103740 Pa.
Answer: pressure in the mine is 780 mm Hg. or 103740 Pa.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.