The following references provide additional information on this topic: 1  PIPES T. V., & WILMORE, J. H. (1974) Isokinetic vs isotonic strength training in adult men. 2  KANEHISA, H., & MIYASHITA, M. (1983) Effect of isometric and isokinetic muscle training on static strength and dynamic power. 3  KOVALESKI, J. E. et al.
Best Answer: The heat of vaporization is the heat required to change the state of the substance from a liquid into a vapor.No chemical bonds are broken in this process, it is only a physical change. The heat of vaporization would correlate with the melting points of the substances.Chlorine, Fluorine, and Oxygen are all gases at normal temperatures and their melting points are quite low. Bromine is a liquid, while Iodine is a solid with the higest melting point of the elements in the list.he heat of vaporization would correlate with the melting points of the substances. Chlorine, Fluorine, and Oxygen are all gases at normal temperatures and their melting points are quite low. Bromine is a liquid, while Iodine is a solid with the higest melting point of the elements in the list.
The average energy of molecules will increase when the liquid is heated. Some molecules, with energy above average are able to break away from the attraction of other molecules and enter the vapour phase. to sum it all up heat must be supplied to convert liquid water into water vapour. Therefore vaporisation is endothermic.