Answer to Question #215822 in Chemical Engineering for qiqi

Question

If the reaction in a process is incomplete, explain if it affects the standard heat of reaction.

Answer 1

The heat of reaction of enthalpy of reaction is defined as the change in the enthalpy value of a chemical process under constant pressure.

The heat of a chemical reaction is defined as the heat developed in the surrounding environment or absorbed from the surrounding environment over the course of a chemical reaction occurring at constant pressure and temperature.

A chemical reaction's heat is represented as molar enthalpy in kJ/mol or specific enthalpy in kJ/kg or kJ/L.

The quantity of heat energy before and after the chemical reaction remains constant, according to the Law of Conservation of Energy. As a result, the quantity of heat lost or gained in a responding system equals the amount of heat lost or gained in the surrounding environment.

Exothermic reactions release heat, causing the temperature of the reaction mixture to rise. Endothermic reactions absorb heat, lowering the temperature of the reaction mixture.