00:01
So, at 25 degree celsius, at 25 degree celsius, the solution of liquid which do not obey raoult's law are called non -ideal solution.
00:10
Okay.
00:10
So, the solution which basically solution that do not obey, do not obey the raoult's law, we are going to call that solution as non -ideal solution.
00:23
Okay.
00:24
Non -ideal solution.
00:26
So, now deviation from raoult's law can be accounted by use of activity coefficient y.
00:34
So, for the binary mixture, for the binary mixture of a and b, we have for the binary mixture, we have pa is equals to yaxa, yaxa into pa sat, okay.
00:57
And for pb, we have ybxb, pb sat, okay.
01:03
So, now for ideal solution, in case of ideal solution, if you see, ideal solution, the ya value is equals to yb value that is equals to 1.
01:15
Okay.
01:15
So, now what we can do is we can apply the pt.
01:19
So, the p total is equals to xa pa sat plus xb pb sat, because the ya yb that equals to 1.
01:31
So, it remained as xa pa and xb pb, right...