Exothermic Reactions Flashcards
What do exothermic reactions do?
Transfer energy to the surroundings.
What do endothermic reactions do?
Take in energy form the surroundings.
What are some examples of exothermic reactions?
Combustion (burning).
Many oxidation reactions, for example rusting.
Neutralisation reactions between acids and alkalis.
What energy is usually transferred for an endothermic reaction?
Heat.
What are some examples of endothermic reactions?
Electrolysis.
The reaction between ethanoic acid and sodium carbonate.
The thermal decomposition of calcium carbonate in a blast furnace.
What happens in reverse reactions?
One direction with be exothermic and another direction will be endothermic.
During an endothermic reaction and exothermic reaction the temperature also changes, explain this.
During an endothermic reaction heat is taken from surroundings and therefore makes the room cold.
During an exothermic reaction heat is transferred to the surroundings and therefore makes the room warm.
This can be measured using a thermometer.
