What does a positive change in enthalpy ($\Delta H$) signify for a chemical process?

Answer

The reaction is endothermic, meaning the system has gained energy overall.

A positive $\Delta H$ is the thermodynamic metric indicating that the energy absorbed by the system is greater than the energy released, classifying the reaction as endothermic.

What does a positive change in enthalpy ($\Delta H$) signify for a chemical process?
chemicalenergyreactionendothermic