Can flames be cold?

Cool flame in itself is not a phenomenon limited to space. It’s uncommon on Earth, but it does happen. As such, a cool fire might persist for far longer periods of time than its hot counterpart; cool flame might even be considered more of an extended chemical reaction that produces some heat rather than proper fire.

What is the coldest flame color?

The colder part of a diffusion (incomplete combustion) flame will be red, transitioning to orange, yellow, and white as the temperature increases as evidenced by changes in the black-body radiation spectrum. For a given flame’s region, the closer to white on this scale, the hotter that section of the flame is.

Which of the following flames would be the coldest?

Answer: 1) The Innermost zone of a flame is dark or black:It consist of hot,unburnt vapours of the combustible material.It is the least hot part of the flame.It is the coldest part of the flame.

What is the temperature of a flame?

Deep red fire is about 600-800° Celsius (1112-1800° Fahrenheit), orange-yellow is around 1100° Celsius (2012° Fahrenheit), and a white flame is hotter still, ranging from 1300-1500 Celsius (2400-2700° Fahrenheit). A blue flame is the hottest one of all, ranging from 1400-1650° Celsius (2600-3000° Fahrenheit).

What part of the flame is the coldest Why?

1) The Innermost zone of a flame is dark or black:It consist of hot,unburnt vapours of the combustible material.It is the least hot part of the flame.It is the coldest part of the flame.

Can fire be purple?

Purple flames come from metal salts, such as potassium and rubidium. Purple and magenta result from a mixture of blue light and red light. For this project, the fire color comes from the emission spectra of safe chemicals. Basically, it’s the practical application of the flame test.

What is the hottest flame?

The hottest fires are from oxyacetylene torches (about 3000 degrees Centigrade) that combine oxygen and gas to create pinpoint blue flames. Color also tells us about the temperature of a candle flame. The inner core of the candle flame is light blue, with a temperature of around 1800 K (1500 °C).