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Specific Enthalpy (Esp) Calculator

Formula

The formula to calculate the Specific Enthalpy (Esp) is:

$\text{Esp} = \frac{\Delta H}{\text{mm} \cdot N}$

Where:

Specific Enthalpy (Esp): The amount of enthalpy per unit mass of a substance. It is a measure of the total energy of a thermodynamic system per unit mass, including both internal energy and the energy required to make room for it by displacing its environment.

Let's say the change in enthalpy (dH) is 5000 J, the molar mass (mm) is 18 g/mol, and the number of moles (N) is 2. Using the formula:

$\text{Esp} = \frac{5000}{18 \cdot 2} \approx 138.89 \, \text{J/g}$

So, the Specific Enthalpy (Esp) is approximately 138.89 J/g.