Flashcards
Endothermic and Exothermic Reactions
Flashcards do conjunto (9)
- 1Why do we measure energy?- Measure energy values of fuels
- Find the energy required and released when making and breaking bonds
- Energy requirement for industrial process
- Predict whether or not a reaction will take place - 2What forms does energy take?- Light
- Heat
- Electrical - 3What is thermochemistry?Thermochemistry is the study of heat changes during a chemical reaction.
- 4Where does energy go when bonds are made and broken?Bonds made - Energy given out
Bonds broken - Energy taken in - 5What makes a reaction exo or endo thermic?The overall change in energy determines whether energy has been lost overall (Exothermic) or whether energy has been absorbed over all (endothermic)
- 6An example of an Exothermic reaction?Neutralization reaction with an acid and alkali
- 7Example of an endothermic reaction?- Calcium carbonate > calcium oxide and carbon dioxide
- Blue copper sulfate > white anyhydrous copper sulfate and water - 8What happens if a reaction is endothermic and it is reversed?It becomes exothermic and vise versa
- 9What does the energy in a reaction depend on?The quantity of the reactants
Informações
- Descrição
- AS level Chemistry (Chapter 04 - Energetics) FlashCards sobre Endothermic and Exothermic Reactions , criado por Bethany Westwood em 21-03-2017.
- Criado por
- Bethany Westwood
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