(1) At a pressure of 907 mbar , what would the height of the
mercury in the column of a mercury barometer?
We know that 1 bar = 750 mm Hg
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1 mbar = 10-3 bar = 10-3 x750 mm Hg
907 mbar = 907 x750x10-3 mm Hg
            Â
= 680.25 mm Hg
Therefore the height of the mercury in the column of a mercury
barometer is 680.25 mm Hg
(2) We know that 760.0 mm Hg = 101.3 kPa
                    Â
----> 1 kPa = (760.0 / 101.3) mm Hg
                                             Â
= 7.50 mm Hg
205 kPa = 205 x 7.50 mm Hg
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= 1538.0 mm Hg
