Question

The heat of vaporization of a substance is the heat that 1kg of that substance needs to : O freeze O vaporize O solidify O melt

Answer 1

vaporize

Step-by-step explanation:

Heat of vaporization of a substance is the heat required to transform 1 kg of substance to vapor as the name suggests. Heat of vaporization is related to pressure. Normally a liquid will start to vaporize when the vapor pressure of the surrounding liquid and the liquid being heated become equal.

The heat of vaporization of water is 40660 J/mol.