[MACRO Academy] S3+4 Chemistry Carboxylic Acids Cheat Sheet

Energy (kJ) Progress of reaction Reactants Products ∆H Activation Energy (E ₐ ) Energy (kJ) Progress of reaction Reactants Products ∆H Activation Energy (E ₐ ) Energy (kJ) Progress of reaction - ∆H Activation Energy (E ₐ ) EXothermic Endothermic ∆ H Negative Positive Thermal Energy Released Absorbed Energy of Products Lower Higher Temperature of surroundings Increases Decreases Diagrams Chemical Energetics Upper Secondary Chemistry ENTHALPY CHANGE If you’re struggling at Chemistry, telegram us @macroacademy www.macroacademy.org The transfer of thermal energy during a reaction is called enthalpy change (∆H), of the reaction. EXOTHERMIC REACTIONS ENDOTHERMIC REACTIONS An exothermic reaction transfers thermal energy to its surroundings, leading to an increase in the temperature of the surroundings. An endothermic reaction transfers thermal energy from the surroundings, leading to a decrease in the temperature of the surroundings. ACTIVATION ENERGY The activation energy E ₐ, is the minimum energy that colliding particles must have in order to react. QUESTION: Find the enthalpy change of and draw the reaction pathway diagram. ANSWER:

pROPERTY alcohol Carboxylic acids General Formula C ₙ H ₂ₙ OH C ₙ H ₂ₙ₊₁ CO ₂ H Suffix -OL -oic acid functional group -OH -CO ₂ H type of reaction Oxidation, condensation Reduction, Condensation Ester Made from Structure Alcohol Carboxylic acid Ethyl Ethanoate Ethanol ethanoic acid Propyl Methanoate PROPAN-1-OL METHANOIC ACID Methyl Butanoate Methanol butanoic acid ethanol + oxygen ethanoic acid + water Alcohols, Carboxylic Acids, & Esters For Chemistry miracles, text us at +65 8366 2396 www.macroacademy.org OXIDATION OF ALCOHOL ESTERIFICATION Upper Secondary Chemistry