do you know how blue fire hotter than red fire

Question: do you know how blue fire hotter than red fire
- Keywords:
  blue,
  fire,
  heat,
  temperature
Asked by conor1416 to Colm, Eoin, Joseph, Lauren, Stephen on 15 Nov 2013.
- Eoin O Colgain answered on 15 Nov 2013:
  
  The colour of light depends on the wavelength of the photons. If something is hotter, the emitted photons have more energy and as a result a shorter wavelength. Blue has a shorter wavelength, whereas the wavelength of red is longer.
- Stephen Scully answered on 15 Nov 2013:
  
  Flame colour is related to the energy not necessarily temperature. Blue light has a higher energy than red light. It is not guaranteed that the blue flame is hotter as there are other factors for example oxygen levels and what you are burning, that also determine the colour.
- Joseph Roche answered on 15 Nov 2013:
  
  Clearly green fire is the best, as can be seen in my work photos at the bottom of this page: /spacen13-zone/profile/josephroche/
  
  😉

Question: do you know how blue fire hotter than red fire