Is ionised air less dense than ordinary air, if so, by how much?

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    $\begingroup$ How would ionizing the air increase the pressure? $\endgroup$ Aug 8, 2018 at 21:14
  • $\begingroup$ I thought that it would lead to an abundance of either negative or positive ions leading to repulsion. ( And then I imagined that the electrical potential energy would transform into elastic potential energy as the volume increases? ) $\endgroup$ Aug 8, 2018 at 21:16
  • $\begingroup$ This is engineering? It's really a physics question at heart: is ionized air less dense than non-ionized air (and if so, by how much)? If you want it reopened, edit it to rephrase the question that way $\endgroup$ Aug 10, 2018 at 10:36
  • $\begingroup$ since, for example, a proton and an electron is 13.6 eV heavier than a hydrogen atom: I'm going to say yes. $\endgroup$
    – JEB
    Aug 13, 2018 at 14:43


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