In general, nuclear fusion happens at a higher temperature for heavier elements. In my astrophysics class we derived an equation for probability of nuclear reactions, and without quoting it exactly, it boils down to have this probability proportional to exp(-m(adsbygoogle = window.adsbygoogle || []).push({}); _{r}Z_{1}Z_{2}), where m_{r}is the reduced mass of colliding particles, Z_{n}are the atomic numbers.

So how come then, that deuterium burning occurs at roughly 10^{6}K while regular hydrogen burns at 10^{7}K?

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Why does deuterium burn at lower temperature than H

Loading...

Similar Threads for does deuterium burn | Date |
---|---|

I How does the Higgs scalar potential evolve with temperature? | Mar 20, 2018 |

B Where does the increase in mass come from in fission? | Mar 19, 2018 |

I Why does the long-lived kaon only rarely decay to two pions? | Feb 11, 2018 |

B What does the Higgs particle consist of? | Jan 27, 2018 |

How does deuterium interacts with neutrons? | Apr 10, 2008 |

**Physics Forums - The Fusion of Science and Community**