Osmotic pressure of insulin solution at 298 K is found to be `0.0072atm`. Hence, height of water Column due to this pressure is

Answer

7.4

Explanation

`P=hdg`
But P = 0.0072 atm . Hence, `h = 0.0072xx76cm` of Hg column
d = density of Hg `= 13.6 "g cm"^(-3) g =981cms^(-2)`
Hence, `P = 0.0072 xx 76 xx 13.6 xx 981` (for Hg column)
For water , `d= "1gcm"^(-3)`. Hence, for water column `P=hxx1 xx 981`
Thus, `hxx 981 = 0.0072 xx 75 xx 13.6 xx 981 `
or h=7.4cm.