- #1
Iooz
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Homework Statement
If you have a manometer with a 70cm tall water column, what is the largest pressure
that can be measured? Assume that the densities of water and mercury are 1000 kg/m3
and 13 600 kg/m3 respectively
Homework Equations
P=pgh+Patm
The Attempt at a Solution
I've attempted this question and am getting an answer of 801mmHg however the answer is 51.5mmHg.
My attempt:
P=pgh+Patm
=(1000 x 9.8 x 0.70) + (1 x 105)
=106860Pa
And then to convert it to mmHg since 101325Pa=760mmHg I went (106860 x 760)/101325
=801mmHg
Can someone please help with where I'm going wrong here?