CHEMISTRY GLOSSARY

heat of reaction    →   toplina kemijske reakcije

Heat of reaction or enthalpy of reaction is the heat evolved or absorbed as a result of the complete chemical reaction of molar amounts of the reactants.

heterogenic reaction    →   heterogena reakcija

Heterogenic reactions are those reactions which take place in different phases (in different aggregate states).

homogenic reaction    →   homogena reakcija

Homogenic reactions are those reactions in which products and reactants are in the same phase (aggregate state).

Mannich reaction    →   Mannichova reakcija

Mannich reaction is a process in which hydrogen atoms in organic compounds are replaced with a methyl group.

Millon’s reaction    →   Millonova reakcija

Millon’s reaction is used for testing proteins by the appearance of red colour which the proteins give by reacting with a solution of mercury in nitric acid.

exothermic reaction    →   egzotermna reakcija

Exothermic reactions are those in which heat is released and there is a corresponding decrease in temperature (ΔH° < 0).

If the reaction is exothermic in one direction, in the opposite direction the reaction is endothermic.

PCl5 reaction    →   reakcija s PCl5

Reaction with phosphorus pentachloride (PCl₅) is a characteristic of organic compounds containing a hydroxyl group and this reaction is used to identify these compounds in an organic analysis.

reaction layer    →   reakcijski sloj

Reaction layer (in electrochemistry) is that layer of solution adjacent to an electrode within which a stationary distribution of electroactive species is established as the result of homogeneous reaction.

reaction mechanism    →   reakcijski mehanizam

Reaction mechanism is a list of all elementary reactions that occur in the course of an overall chemical reaction.

reaction order    →   red reakcije

Order of a reaction (n) is the sum of the exponents of the concentration terms in a rate equation.

Total order of a reaction is