Answer
At room temperature (70 degrees Farenheit), there is not enough energy for gas molecules and oxygen molecules to react (to start a fire). By igniting the flame, the temperature increases as well as the collision energy, allowing to the reaction to begin. The heat released by the reaction maintains the high temperature and allows the reaction to continue spontaneously.
Work Step by Step
At room temperature (70 degrees Farenheit), there is not enough energy for gas molecules and oxygen molecules to react (to start a fire). By igniting the flame, the temperature increases as well as the collision energy, allowing to the reaction to begin. The heat released by the reaction maintains the high temperature and allows the reaction to continue spontaneously.
