Enter the volume of substance (m^3) and the heat of fusion (J/m^3) into the calculator to determine the Phase Change Energy. 

Phase Change Energy Formula

The following equation is used to calculate the Phase Change Energy. 

Ephase = V*H


  • Where Ephase is the Phase Change Energy ((J))
  • V is the volume of substance (m^3) 
  • H is the heat of fusion (J/m^3) 

How to Calculate Phase Change Energy?

The following two example problems outline the steps and information needed in order to calculate the Phase Change Energy.

Example Problem #1:

  1. First, determine the volume of substance (m^3). In this example, the volume of substance (m^3) is measured to be 4.
  2. Next, determine the heat of fusion (J/m^3). For this problem, the heat of fusion (J/m^3) is calculated to be 6.
  3. Finally, calculate the Phase Change Energy using the formula above: 

Ephase = V*H

Inserting the values from above and solving the equation with the imputed values gives: 

Ephase = 4*6 = 24 ((J))

Example Problem #2: 

Using the same process as example problem 1, we first define the needed variables outlined by the formula. In this case, the values are provide as: 

volume of substance (m^3) = 4

heat of fusion (J/m^3) = 3

Entering these values into the formula or calculator above gives us: Ephase = 4*3 = 12 (J)