How flammable is methane?

Methane is classified as highly flammable because it can easily ignite and sustain combustion when exposed to an ignition source. The flammability of methane is due to its chemical composition, which allows it to react with oxygen in the air, producing a flame. At room temperature, methane has a low ignition energy, meaning that it requires very little energy to catch fire. Additionally, the range of concentrations in which methane can form a flammable mixture with air is quite broad, further underscoring its flammability. Understanding this property is crucial in contexts where methane is used or stored, as it requires specific safety measures to prevent accidental ignition.