Question

Which of the following statements are correct about the equilibrium point on a two component system?

(a) All the compounds are liquid

(b) The boiling point of the mixture is less than the boiling points of the individual compounds

(c) The degree of freedom is 0

(d) Invariant reaction takes place

This question was addressed to me by my college director while I was bunking the class.

Enquiry is from Two Component System topic in division Phase Rule of Engineering Chemistry I

Answer 1

Correct answer is (b) The boiling point of the mixture is less than the boiling points of the individual compounds

Explanation: The Eutectic point on a phase diagram is a point at which the mixture boils at a temperature lower than that of the pure substances. The substance attains equilibrium state.