The amount of heat required 2 effect the transition of 1 mole of a substance from the liquid 2 the gas phase i

Question

A. molar heat of fusion
B. normal boiling point
C. melting point
D. molar heat of vaporization

Answer 1

The answer is D. This is the definition of the molar heat of vaporization. (Vaporization is the process of going from a liquid to a gas.)

Answer 2

I would say B because liquid to gas is the point of vapor being formed, which is what happens with water at 100 degrees C, which is just the boiling point.