Endothermic and Exothermic reactions
Most reactions give out or take in energy as they proceed. The amount of energy involved when a reaction takes place is important for many reasons, including:
- We can measure the energy values of fuels
- We can calculate the energy requirements for industrial processes.
- We can work out the theoretical amount of energy to break bonds and the amount of energy released when bonds are made.
- It helps us to predict whether or not a reaction will take place.
This is the study of heat changes during chemical reactions.
- When a chemical reaction takes place, chemical bonds break and new ones are formed.
- Energy must be put in to break bonds and given out when bonds are formed, so most reactions involve an energy…