* Exothermic Reactions: These reactions release energy into the surroundings, often in the form of heat and light.
* Gasoline Combustion: The burning of gasoline (a hydrocarbon) in an engine is a classic example of an exothermic reaction. The chemical bonds in gasoline are broken, releasing energy.
* Energy Conversion: The energy released by combustion is used to expand the gases in the engine's cylinder, pushing the piston and ultimately turning the crankshaft. This mechanical energy is then harnessed to power the vehicle.
In summary: The burning of gasoline in an engine is an exothermic reaction that releases energy, which is converted into mechanical energy to power the vehicle.
