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+//Example 7.19
+clear;
+clc;
+
+//Given
+R=82;//gas constant in atm ml K^-1 mol^-1
+w2=2;//mass of solute in g
+M2=69000;//molecular mass of solvent in g mol^-1
+T=300.15;//temperature in K
+V=100;//volume of solution in ml
+
+//To determine the osmotic pressure in cms of (i)water (ii)mercury
+pi=(T*R*w2)/(M2*V);//the osmotic pressure in atm
+h1=(pi*1013250)/(980.67);//the osmotic pressure in cms of (i)water
+h2=pi*76;//the osmotic pressure in cms of (ii)mercury
+mprintf('the osmotic pressure in cms of (i)water = %f cm',h1);
+mprintf('\n the osmotic pressure in cms of (ii)mercury = %f cm',h2);
+//end
+\ No newline at end of file