Answer :
Final answer:
The flame temperature for natural gas with methane as fuel is between 1,700-1,900°C (3092 to 3452°F), with 2400°F being the closest answer choice provided.
Explanation:
The flame temperature for natural gas, which primarily consists of methane, is typically in the range of 1,700-1,900°C when burned in air, as with a standard Bunsen burner. This temperature range equates to approximately 3092 to 3452°F, so the closest answer choice to this range is option b) 2400 degrees Fahrenheit. It is important to note though, that the actual temperature of a natural gas flame can vary depending on the conditions of combustion, like the mixture of gas to air.