Posted by **Kaiz** on Wednesday, February 15, 2012 at 6:21am.

Mercury has a density of 13600 kg/m3. At what depth in millimetres is the pressure in mercury equal to that of standard atmospheric pressure? (take std pressure= 101 Pa)

- Physics -
**Daryll**, Wednesday, February 15, 2012 at 6:31am
Pressure = height * density * gravity

101 Pa = height * (13600 kg / m3) * (9.81 m/s2)

** note that kg * m/s2 = N

101 Pa = height * 133416 N/m3

** Pa = N/m2

therefore,

(101 N/m2) / (133416 N/m3) = height

height = 0.00075703 m = 0.75703mm

*********

HOWEVER!!! from my knowledge the standard atmospheric pressure is 101.325 KILO Pascal... so if that's the case, assuming you mistyped and meant 101 kPA...

101 kPa = height * 133416 N/m3

(101000 N/m2) / (133416 N/m3) = height

height = 0.757030641 m = 757.030641 mm

*********

## Answer this Question

## Related Questions

- Physics - Mercury has a density of 13600 kg/m3. At what depth in millimetres is...
- physics - If the specific gravity of mercury is 13.6 and the atmospheric ...
- pressure - ab open tube mercury manometer is used to measure the pressure in an ...
- Physics - A cylindrical container 1.5m tall contains mercury to a certain depth...
- chem - One atmospheric pressure is that which will support a column of mercury ...
- physics - It the specific gravity of mercury is 13.6 and the atmospheric ...
- heat - if the absolute pressure of a gas is 550.280 kPa, its gage pressure is ? ...
- Chemistry - The organic compound di-n-butyl phthalate, C16H22O4(l), is sometimes...
- pressure - determinr the liquid andabsolute pressure at a depth of 4min ...
- physics - Challenger Deep in the Marianas Trench of the Pacific Ocean is the ...

More Related Questions