The temperature of the flame on a gas stove can vary depending on several factors, such as the type of gas used (natural gas or propane), the gas pressure, the size of the burner, and the setting on the stove's control knob. On average, the flame temperature of a gas stove can range from about 500 to 900 degrees Celsius (approximately 932 to 1652 degrees Fahrenheit).
Here's a rough estimation of the flame temperatures based on the flame appearance:
Outer Blue Flame: The outer part of the flame, which is usually blue in color, is the hottest part and can reach temperatures of around 800 to 900 degrees Celsius (1472 to 1652 degrees Fahrenheit).
Inner Blue Flame: The inner part of the flame, also blue in color, is slightly cooler and may have temperatures ranging from 700 to 800 degrees Celsius (1292 to 1472 degrees Fahrenheit).
Yellow Flame: The yellow part of the flame is cooler than the blue parts and may have temperatures ranging from 500 to 700 degrees Celsius (932 to 1292 degrees Fahrenheit).
Keep in mind that these are approximate temperatures, and they can vary depending on the specific stove and its settings. For precise temperature control during cooking, it's best to use a kitchen thermometer or an infrared thermometer to measure the actual temperature of the cooking surface or the food being cooked.