Question

Which of the following process release heat? i)condensation ii)vaporization iii) freezing iv) melting (Choose one or more than one answer)

Answer 1

vapourization - boiling releases heat and hot vapours 

Answer 2

ii) vaporization

Explanation:

• Vaporization is conversion/phase transition of matter from the liquid phase into the vapor phase. There are 2 types of vaporization: boiling and evapouration
• Due to an increase in temperature, the  molecules' kinetic energy increases. Because of the increases in the kinetic energy, the attraction force between the molecules decreases.
• Consequently, they escape into the surrounding in the form of vapors. This process includes heat energy consumption .