Methane is a chemical compound with the molecular formula CH4. It is a colorless, odorless gas and is the simplest alkane and the main component of natural gas. Here are some key points to understand about methane:
Properties of Methane:
Methane is a non-polar molecule, which means it does not have a positive or negative end, and it is not soluble in water.
It is lighter than air and has a specific gravity of 0.554, which means it will float in the atmosphere.
Methane is flammable and can form explosive mixtures with air when it reaches a concentration of 5-15% in the air.
Sources of Methane:
Methane is produced through both natural and human activities. Some of the main sources include:
Methane is a potent greenhouse gas, and its release into the atmosphere contributes to global warming and climate change. It has a much higher global warming potential than carbon dioxide over a 20-year period, although it has a shorter atmospheric lifetime.
Study Guide Questions:
What is the molecular formula of methane?
What are the natural sources of methane?
What are the properties of methane that make it a useful fuel?
How does the release of methane impact the environment?
What are the main human activities that contribute to methane emissions?