Vaporization of water at its boiling point is represented on an energy diagram with…
CHEMISTRY · Single correct · A Level · Chemistry · Energetics · Energetics
Problem
Vaporization of water at its boiling point is represented on an energy diagram with liquid water at 0 kJ and water vapor at +40.7 kJ per mole. Which classification best describes this phase change?
(a) Exothermic, ΔH<0
(b) Endothermic, ΔH<0
(c) Endothermic, ΔH>0
(d) Isothermal, ΔH=0