Physics

The gauge pressure at the bottom of a vertical tube (open to the atmosphere) filled with mecury is 100kPa. How high is the column of mecury in the tube?
I used the formula pressure=density * gravity * height which i reaaranged to find h= 100000Pa/(13570kg/m3*9.8)=0.75m but this is not the correct answer, can anyone help me out

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  1. 100 kPa is 0.987 atm. If that is the gauge pressure there, the absolute pressure there is 1.987 atm.

    I agree with your answer.

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