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THE FEUTEX TOOLKIT

Colligative Temperature Shifts

Calculate ideal freezing-point depression and boiling-point elevation from molality.

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FormulaFreezing-point depression = i*kf*m; Boiling-point elevation = i*kb*m
Sources and model references

How to use this tool

  1. Calculate ideal freezing-point depression and boiling-point elevation from molality.
  2. Set solute molality, effective van ’t hoff factor, freezing constant, boiling constant in the indicated units.
  3. Calculate and compare freezing-point depression, boiling-point elevation.

Try this example

{
  "m": 0.5,
  "i": 2,
  "kf": 1.86,
  "kb": 0.512
}

Accuracy and scope

Ideal dilute-solution approximation with user-supplied effective particle factor and solvent constants.

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