Definition: Diesel, or Diesel Engine (in English), also known as gasoline, is a type of liquid fuel that's used to power internal combustion engines. The name "Diesel" comes from the fact that the primary components of diesel include a mixture of hydrocarbons and various chemical compounds. It's made up of two main parts: a fuel component (which contains hydrogen, nitrogen, oxygen, water, and other chemicals) and an oxidizer component (gasoline or jet fuel). The most commonly used type of Diesel Engine is a gas cycle engine, which uses the mixture of hydrogen and nitrogen to convert chemical energy into steam that powers the engines. It's also known as a diesel car or a diesel truck. Diesel is often seen in cars, buses, trucks, and other vehicles with gasoline engines, but it can also be used on ships, boats, or boats powered by steam. In some cases, Diesel fuel may be blended with other types of fuel like jet fuel or kerosene to provide better performance or reduce the engine's carbon footprint. The chemical composition of diesel fuels is quite diverse and varies depending on the type of gasoline or diesel mix used. For example: - Gasoline: Hydrocarbons such as ethane, propane, and butane. - Jet Fuel: Hydrocarbons such as propylene, butane, and octane. Diesel can be highly efficient at converting chemical energy into mechanical work, although it's not completely pure fuel. Diesel engines require regular maintenance to ensure they're operating efficiently and safely, often by cleaning the carburetors or replacing worn-out components. In summary, diesel is a type of liquid fuel that powers internal combustion engines. It includes a mixture of hydrocarbons and various chemical compounds such as hydrogen, nitrogen, oxygen, water, and other chemicals. It's used to power cars, buses, trucks, ships, and boats on the road and in various applications.