Quantitative Chemistry, Organic chemistry and rates of reaction Flashcards
heat of reaction
The net change of chemical potential energy of the system
exothermic reaction:
reactions which transform chemical potential energy into thermal energy
Endothermic reaction
reactions which transform thermal energy into chemical potential energy
Activation Energy
-the minimum energy required to starta chemical reaction
the energy required to form the activated complex
Activated Complex
a high energy, unstable, temporary transition state between the reactants and the products
Reaction Rate
The change in concentration per unit time of either a reactant or product
Catalyst
a substance that increases the rate of the reaction but remains unchanged at the end of the reaction
Hydrocarbon
Hydrocarbon:a compound containing only carbon and hydrogen atoms
Saturated Compound
a compound in which all of the bonds between carbon atoms are single bonds
Unsaturated hydrocarbon
a compound in which there is at least one double and/or triple bond between carbon atoms
Functional Group
atom or a group of atoms that form the centre of chemical activity in the molecule
Homologous series
a series of similar compounds which have the same functional group and have the same general formula, in which each member differs from the previous one by a single CH2 unit
Structural Isomers
compounds having the same molecular formula but different structural formulae
Solute
The substance that is dissolved in the solution.
Solution
Homogenous Mixture of solute and solvent
