Answer to Question #97020 in Physical Chemistry for Abhishek

Question

What is CST of a partially miscible liquid pair ? give one example each for the following liquid pairs which have

(a) lower CST
(b) upper CST
(c) both lower and upper CST

Answer 1

Partially miscible liquids necomemore soluble with the increase in temperature and at a certain temperature they become completely miscible.

This temperature is known as the critical solution temperature (CST).

liquid pairs which have

(a) lower CST-

triethylamine and water

(b) upper CST-

hexane and nitro-benzene

(c)both lower and upper CST-

nicotine and water