Examples of Gaseous Fuels
Gaseous fuels are substances that exist in a gaseous state at normal temperature and pressure and can be used to produce energy. Here are some common examples:

1. Natural Gas
- Natural gas is primarily composed of methane (CH4).
- It is a clean-burning fuel, producing less carbon dioxide compared to other fossil fuels.
- Commonly used for heating, cooking, and electricity generation.

2. Propane
- Propane (C3H8) is a byproduct of natural gas processing and petroleum refining.
- It is stored in liquid form but vaporizes into gas when released.
- Widely used for heating, hot water systems, and as fuel for vehicles.

3. Butane
- Butane (C4H10) is similar to propane and is often found in lighters and portable stoves.
- It is also used in the production of chemicals and as a refrigerant.
- Butane can be stored and transported easily in canisters.

4. Hydrogen
- Hydrogen (H2) is the lightest and most abundant element in the universe.
- When burned, it produces only water as a byproduct, making it an environmentally friendly option.
- Used in fuel cells to generate electricity and in various industrial processes.

5. Biogas
- Biogas is produced from the anaerobic digestion of organic matter, such as food waste and animal manure.
- It mainly consists of methane and carbon dioxide.
- Used for cooking, heating, and generating electricity, biogas is a renewable energy source.
Gaseous fuels play a significant role in energy production and are crucial for a cleaner environment. Understanding their properties and uses helps promote sustainable energy practices.