The osmotic pressure of a solution of NaCl is 0.10 atm and that of a glucose solution is 0.20 atm. The osmotic pressure of a solution formed by mixing 1 L of the sodium chloride solution with 2L of the glucose solution is `x xx 10^(-3)` atm. `x` is _________.(nearest integer)

Answer

167

Explanation

`pi=i `CRT `=i[n/V]RT`
`pi_("final")=((pi_1V_1)+(pi_2V_2))/(V_1+V_2)`
`pi_("final")=((0.1 xx1)+(0.2xx2))/(3)`
`= ((0.1+0.4))/3=(0.5)/3=500/3xx10^(-3)` atm
So, X = 167