What is the ignition temperature of methane, along with its flammable range?

The ignition temperature of methane is the minimum temperature at which it can ignite in the presence of an ignition source. In this case, the correct choice lists the ignition temperature for methane as 1076°F. This indicates that at or above this temperature, methane can combust if mixed with air.

Additionally, the flammable range is critical for understanding the conditions under which methane can ignite. The range of 5 - 15% signifies the percentage of methane in air that is necessary for a fire to occur. If the concentration is below 5%, there is not enough methane for combustion, and if it exceeds 15%, there isn't enough oxygen to support ignition.

This specific combination of ignition temperature and flammable range is essential knowledge for fire fighters when dealing with potential methane leaks or fires, as it guides their approach to safety protocols and fire control measures.

In contrast, the other choices present incorrect values for either the ignition temperature, the flammable range, or both, which do not accurately reflect the chemical properties of methane. Understanding the precise values is crucial for fire safety and effective response strategies.