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clear;
clc;
printf("\t Example 7.3\n");
s1=19.75; //solubility at 70 degree per 100 gm of water
s2=16.5; //solubility at 50 degree per 100 gm of water
s3=12.97; //solubility at 30 degree per 100 gm of water
s4=9.22; //solubility at 10 degree per 100 gm of water
s5=7.34; //solubility at 0 degree per 100 gm of water
//basis is 1000kg of saturated solution
w1=1000*(s1/(s1+100)); //weight of K2SO4 in the original solution
w2=1000-w1; //weight of water in kg
w3=w1*.5; //weight of K2SO4 in the solution
wp=w3/(w3+w2); //weight percent of K2SO4 in the solution after crystallistion
printf("\n for the corresponding temperature to :%f percent of K2SO4 is 15 degree (by linear interpolation between 10 to 30 degree) ",wp*100);
//end
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