H₂O has a triple point near 0℃, where all three phases, solid (ice),liquid (water), and gas (water vapor), can coexist. So there are three possible phase transitions, solid → liquid (melting), water → gas(vaporization), and solid → vapor (sublimation). Each has an associated enthalpy of transition. Can you suggest a relation amongΔH_fusion, ΔH vaporization , and ΔH_sublimation ? Check your conjecture by looking up data. Be sure to get data at the same temperature.