Question

which has the greatest amount of energy : An ice cube at 0 celcius or a recently melted ice cube at 0 celcius

Answer 1

Since a fundamental law of physics is that energy must be conserved, this latent heat of sublimation must equal 2835 J g−1 at 0°C — the sum of the latent heats of melting/fusion and vaporization/sublimation at that temperature. Thus, water vapor at 0°C has 2835 J g−1 more energy than ice at 0°C.