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physical phenomena > energy source > exothermic fusion process > hydrogen burning > proton-proton chain > pep reaction
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pep reaction
subjectfact 
pep reactionhas reaction probability once in 400 p-p reactionshas source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:29:42.0
has definition A reaction occurring in the proton-proton chain which occurs only once in 400 p-p reactions but produces far more energetic neutrinos (1.44 MeV as against 0.42 MeV).has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:29:42.0
is an instance of proton-proton chainhas source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:29:42.0
proton-proton chainhas required reactant concentration high2001-09-27 09:29:42.0
has optimum temperature 5 million Kelvin2001-09-27 09:29:42.0
has part intermediate product deuterium2001-09-27 09:29:42.0
has part intermediate product tritium2001-09-27 09:29:42.0
has part product helium2001-09-27 09:29:42.0
has part reactant proton2001-09-27 09:29:42.0
has next higher temperature reaction carbon cycle2001-09-27 09:29:42.0
has temperature dependence E ∝ T42001-09-27 09:29:42.0
has minimum temperature 107 K2001-09-27 09:29:42.0
has synonym p-p chain2001-09-27 09:29:42.0
has location the center of the Sun an other stars2001-09-27 09:29:42.0
hydrogen burninghas minimum mass 0.08 solar masses2001-09-27 09:29:41.0
has product helium2001-09-27 09:29:41.0
has catalyst2001-09-27 09:29:41.0
has reactant hydrogen2001-09-27 09:29:41.0
exothermic fusion processliberates energy2001-09-27 09:29:41.0
fusionhas antonym fission2001-09-27 09:29:41.0
produces energy2001-09-27 09:29:41.0
physical processhas domain physics2001-09-27 09:29:38.0

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