question_answer

Raman takes some amount of water in a pot. He measure the mass of the water and then boils it for 30 minutes. Then he again measures the mass of the water. He observes:

A) mass of the water before boiling and after boiling is the same

B) mass of the water before boiling is more than that of after the boiling

C) mass of the water before boiling is less than that of after the boiling

D) All of these

E) None of these