Question

The atmospheric pressure on top of Mt. Everest (elevation 29.028 ft) is 250. mmHg. What is the atmospheric pressure in atm and torr?

Answer 1

It's so low?

Explanation:

Well, we know that `"1 atmosphere"` or pressure will support a column of mercury that is `760*mm` high. A mercury column is thus a very convenient means to measure LOW pressures (such as occur on a vacuum line) or pressures around about `1*atm`.

And thus we can take the quotient...........

`"Pressure"_"atop Everest"=(250*mm*Hg)/(760*mm*Hg*atm^-1)=0.329*atm`.

And no wonder they usually take bottled oxygen. It must be also hard to get a hot meal in the Himalayas. The boiling point of water under these conditions is round about `70` `""^@C`.

Of course, the pressure in `"Torr"` is the same as the pressure in `mm*Hg`.