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+//Example 7.1
+clear;
+clc;
+
+//Given
+R=8.314;//gas constant in J K^-1 mol^-1
+T=298;//temperature in K
+
+//To calculate delGmix,delHmix and delSmix
+//(i) 10 moles of H + 10 moles of Ne
+n1=10;//moles of H
+n2=10;//moles of Ne
+x1=n1/(n1+n2);//mole fraction of H
+x2=n2/(n1+n2);//mole fraction of Ne
+delGmix1=R*T*((n1*log(x1))+(n2*log(x2)));//free energy change in J
+delSmix1=-delGmix1/T;//entropy change in J K^-1
+delHmix1=0;//since all gases are ideal
+mprintf('(i) delGmix = %f J \n delHmix = %f J \n delSmix = %f J K^-1',delGmix1,delHmix1,delSmix1);
+//(ii) 10 moles of H + 20 moles of Ne
+n21=10;//moles of H
+n22=20;//moles of Ne
+x21=n21/(n21+n22);//mole fraction of H
+x22=n22/(n21+n22);//mole fraction of Ne
+delGmix2=R*T*((n21*log(x21))+(n22*log(x22)));//free energy change in J
+delSmix2=-delGmix2/T;//entropy change in J K^-1
+delHmix2=0;//since all gases are ideal
+mprintf('\n (ii) delGmix = %f J \n delHmix = %f J \n delSmix = %f J K^-1',delGmix2,delHmix2,delSmix2);
+//(iii) 10 moles of Ne + 20 moles of equimolar mixture of Ne and He
+delGmix3=delGmix2-delGmix1//free energy change in J
+delSmix3=-delGmix3/T;//entropy change in J K^-1
+delHmix3=0;//since all gases are ideal
+mprintf('\n (iii) delGmix = %f J \n delHmix = %f J \n delSmix = %f J K^-1',delGmix3,delHmix3,delSmix3);
+//end
+\ No newline at end of file