All GRE Subject Test: Chemistry Resources
Example Question #1 : Endothermic And Exothermic Reactions
When the enthalpy of a reaction has a value of , which word is used to describe the reaction?
When the enthalpy of a reaction is negative, it means that heat has been released from the system to the surroundings. This release of energy is referred to as an exothermic reaction.
Endothermic reactions have a net heat flow into the system. Exergonic and endergonic are terms used to describe the change in free energy for a given system.