Q:

# How hot is the tip of a lit cigarette?

A:

The temperature of the tip of a lit cigarette when smoldering is close to 1100 degrees Fahrenheit. The temperature of the tip during a two-second puff can be more than 1600 degrees Fahrenheit. Cigarette tip temperatures are significantly higher than gasoline's autoignition threshold of 495 degrees Fahrenheit.

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Credit: Leah Grace CC-BY-2.0

There have been more than 5,000 smoke constituents identified in cigarette smoke, and 150 of these have been identified as smoke toxicants. As of 2002, there were 5.5 trillion cigarettes being produced globally each year and more than 1.1 billion smokers. The number of smokers decreased by 50 percent in the United States between 1965 and 2006.

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## Related Questions

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A battery's power, or the electrical current that it can provide, is greatly reduced when the temperature drops. A typical car battery, for example, has about 50 percent of its starting power at 0 degrees Fahrenheit when compared with its operation at 80 degrees Fahrenheit.

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The difference between temperature and thermal energy is that temperature measures the average kinetic speed of molecules and thermal energy is the total kinetic energy of all particles in a given substance. In other words, temperature measures the average speed of movement, and thermal energy measures the mass of a substance. Both temperature and thermal energy are made by the movement of particles.

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To calculate the adiabatic flame temperature of a substance, measure the substance's molar mass and its initial temperature. Calculate the heat of the reaction at 25 degrees Celsius to find the final adiabatic flame temperature.