Question

the reading on a mercury barometer at mombasa is 760mms.calculate the pressure at mombasa(density of mercury=1.36x10 power 4kg/m3​

Answer 1

The pressure at Mombasa is 101.396 KPascal.

Step-by-step explanation:

Given: Reading on barometer = 760 mm

= 0.76 m

Density of mercury = 1.36 x
`10^(4)` kg/
`m^(3)`

In this case, the pressure can be expressed as:

P = σhg

Where: σ is the density of mercury, h is height of mercury in the barometer, and g is the acceleration due of gravity.

But, g = 9.81 m/
`s^(2)`

So that,

P = 1.36 x
`10^(4)` x 0.76 x 9.81

= 101396.16 Pascal

P = 101.395 KPascal

The pressure at Mombasa is 101.396 KPascal.