Question

The boiling point and molar heat of vaporisation is dependent on ____________

(a) Strength of the inter-molecular forces

(b) Composition of the liquid compound

(c) Size of the molecules

(d) All of the mentioned

The question was posed to me during an online interview.

This interesting question is from Boiling Point in portion Criteria of Purity and Characterisation of Materials of Engineering Chemistry I

Answer 1

The correct answer is (a) Strength of the inter-molecular forces

The best I can explain: The boiling point and molar heat of vaporisation is dependent on the strength of the inter-molecular forces. The boiling point of a liquid varies depending upon the surrounding environmental pressure.