1.

Osmotic pressure of insulin solution at 298 K is found to be 0.0072 atm. Hence, height of the water column due to this pressure will be (Given density of Hg = "13.6 g mL"^(-1))

Answer»

7.4 mm
7.4 CM
74 cm
760 mm

Solution :p=hdg
But P = 0.0072 ATM. Hence, `h=0.0072xx76cm` of Hg column, d = density of `Hg="13.6 g cm"^(-3), g ="981 cm s"^(_2)`
Hence, `P=0.0072xx76xx13.6xx981"(for Hg column)"`
For WATER, `d="1 g cm"^(-3)`. Hence, for water column
`P=hxx1xx981`
Thus, `hxx981=0.0072xx75xx13.6xx981`
`"or"h=7.4 cm`


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