Delta H Calculator

Calculate Change in Enthalpy (ΔH)





Formula

The formula to calculate the change in enthalpy (ΔH) is:

\[ \Delta H = C_p \cdot m \cdot \Delta T \]

Where:

What is Delta H?

Delta H, or enthalpy change, is the amount of heat released or absorbed during a chemical reaction or phase transition at constant pressure. It is an important concept in thermodynamics and chemistry, as it helps predict the energy changes and feasibility of reactions. A negative Delta H indicates an exothermic reaction (releases heat), while a positive Delta H indicates an endothermic reaction (absorbs heat).

Example Calculation

Let's assume the following values:

Using the formula:

\[ \Delta H = C_p \cdot m \cdot \Delta T = 4.18 \cdot 100 \cdot 25 = 10450 \]

The Change in Enthalpy (ΔH) is 10450 Joules.