Which gas has a flame speed of 11 inches per second?

Natural gas is indeed recognized for having a flame speed of approximately 11 inches per second when mixed with air. This characteristic is important because flame speed affects how a gas behaves during combustion, influencing its applications in heating and energy production.

In practical terms, the flame speed indicates how quickly a flame will travel through a gas-air mixture. For natural gas, this speed allows for controlled combustion in appliances like furnaces and stoves, ensuring safety and efficiency in heating. Understanding the flame speed of natural gas is crucial for technicians and engineers when designing systems that utilize this fuel, as it directly impacts flame stability and the overall performance of combustion equipment.

Other fuels, such as propane, butane, and ethylene, have different combustion characteristics, including varying flame speeds. These differences are key in selecting the appropriate gas for specific applications and ensuring that systems operate within safe and efficient parameters.