Phase-Change Energy Calculator
Multi-stage thermal calculation that crosses solid → liquid → vapor boundaries. Reports per-stage breakdown (heat solid, melt, heat liquid, vaporize, heat vapor) plus the total energy. Handles both heating (energy in) and cooling (energy released). Includes a live T-vs-Q "staircase" visualizer that shows the latent-heat plateaus.
Fill in material, mass, and both temperatures to see the T-vs-Q staircase.
Provide a positive mass.
Provide a positive mass.
Limitations: Properties are at 1 atm. Latent heats and specific heats vary slightly with pressure and (for c_vapor / c_liquid) temperature; values used are canonical at-the-transition figures from CRC Handbook / NIST. Does not model supercooling, supercritical behavior, or sublimation (solid → vapor direct).
What to do next: Classic example: 1 kg of ice at −10 °C heated to 110 °C steam. Expect ~3.07 MJ total — most of which (2.26 MJ) is the latent heat of vaporization at 100 °C. The breakdown output shows where each chunk of energy goes.