emission

The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to electrons making a transition from a high energy state to a lower energy state. The photon energy of the emitted photons is equal to the energy difference between the two states. There are many possible electron transitions for each atom, and each transition has a specific energy difference. This collection of different transitions, leading to different radiated wavelengths, make up an emission spectrum. Each element's emission spectrum is unique. Therefore, spectroscopy can be used to identify elements in matter of unknown composition. Similarly, the emission spectra of molecules can be used in chemical analysis of substances.

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  1. T

    New owner

    Not me, my daughter. It’s a non plug in hybrid, and she’s had it a couple of months (74 plate). She’s just had it back after it being in the garage for 2 weeks, which what I suspect may be the same problem as discussed in the “ENGINE EMISSIONS FAULT” thread. She had an orange light saying so...
    • the2ems
    • Thread
    • emission engine fault mg3 hybrid+ new owner owner
    • Replies: 1
    • Forum: MG3 Hybrid+ Forum
  2. Hybrid Ann

    Emissions fault

    Hi all. I have a MG3+Hybrid. I've only done 1000 miles and an engine light has come on which, according to the manual is an Emissions fault. Anybody know what this is about and any other input would be grateful to hear, as I'm a bit worried, very annoyed and taking a big sigh right now.
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