sentences:  He attended Royal School Dungannon and went on to Trinity College, Dublin in 1884, where he studied engineering and physical science.While still an undergraduate student, Trouton observed a relationship between boiling points and energies of vaporisations, which he presented in two short papers.He found the change of entropy per mole for vaporisation at a boiling point is constant, or expressed mathematically ΔSm,vap = 10.5 R (where R is the ideal gas constant).