Question

What is boiling point elevation constant of water?

(a) 5.12°C/m

(b) 51.2°C/m

(c) 0.512°C/m

(d) 0.0512°C/m

This question was posed to me in an interview for internship.

The doubt is from Evaporation in chapter Evaporation of Food Processing Unit Operations

Answer 1

Correct answer is (c) 0.512°C/m

The best I can explain: The boiling point elevation constant of water is 0.512°C/m. It is a constant that is equal to the change in the boiling point for a 1-molal solution of a nonvolatile molecular solute so therefore it is called as the molal boiling-point elevation constant.