Lecture 33

We will start the lecture 33, the topic which we did in the previous class, we will discuss it more. The topic is effect of del h mix on del g mix. We will see that if the value of del h mix is non-zero, then what will be the effect of del h mix on del g mix, we will see that graphically. And slowly we will do some calculation. So, what we did in the previous class, we saw three conditions. One condition is that del h mix will be 0, that is the ideal case. And in the ideal case, we saw that the way we did isomorphism, we can think like that. But when del h mix will be negative, then the del g mix will be further down. Fine. So, in this lecture, we will see that what will be the effect of del h mix on del g mix. del h mix equal to 0, ideal case. Condition 2, del h mix less than 0. condition 3, del h mix greater than 0. condition 5, del h mix greater than 0. condition 6, del h mix less than 0. condition 7, del h mix greater than 0. condition 8, del h mix less than 0. condition 9, del h mix greater than 0. condition 10, del h mix less than 0. condition 12, del h mix less than 0. condition 14, del h mix less than 0. condition 15, del h mix greater than 0. condition 16, del h mix less than 0. condition 17, del h mix greater than 0. condition 18, del h mix greater than 0. condition 19, del h mix less than 0. condition 20, del h mix greater than 0. condition 21, del h mix greater than 0. condition 22, del h mix less than 0. condition 23, del h mix greater than 0. condition 24, del h mix greater than 0. condition 25, del h mix less than 0. condition 26, del h mix greater than 0. condition 28, del h mix greater than 0. condition 29, del h mix less than 0. condition 30, del h mix greater than 0. condition 31, del h mix greater than 0. condition 32, del h mix less than 0. condition 33, del h mix greater than 0. condition 34, del h mix less than 0. condition 36, del h mix greater than 0. condition 37, del h mix greater than 0. condition 38, del h mix greater than 0. condition 39, del h mix greater than 0. condition 40, del h mix greater than 0. condition 41, del h mix greater than 0. condition 42, del h mix less than 0. condition 43, del h mix greater than 0. condition 44, del h mix less than 0. condition 55, del h mix greater than 0. condition 56, del h mix greater than 0. So, I can say this is equal to minus infinity because this is not a finite positive, it is minus infinity. So, in this condition, we can understand what is happening. So, what did I get, equal to minus infinity, I got another one, that is fine, I have these two conditions. So, this is equal to minus infinity. Similarly, change in del H mix at XB tends to 0 would be this, at a finite value, finite positive. So, net change which is del mix minus T del S mix, it is equal to minus infinity. So, del G mix net change is equal to minus infinity. So, this is equal to minus infinity. So, this is equal to minus infinity. So, this is equal to minus infinity. Thank you.