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Home Q & A Board Science-Related Homework Help Physics
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staedtler staedtler
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7 years ago
Why are higher gas temperatures in the core of a star required in order to produce nuclear fusion of helium compared to that required for hydrogen?
A)   Because the helium nuclei need to be moving faster in order to avoid the more numerous and faster hydrogen nuclei, with which they can combine with no energy generation.
B)   Because higher speeds are needed between two helium atoms in order to overcome the shielding effect of the two electrons around the nucleus compared to the one electron per nucleus of hydrogen.
C)   Because higher atomic speeds are required in order to strip off two electrons per helium atom rather than one electron per atom for hydrogen before fusion can take place.
D)   Because higher collision speeds are needed to overcome the extra electrostatic repulsion between doubly charged helium nuclei.
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Discovering the Universe

Discovering the Universe


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discovererdiscoverer
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staedtler Author
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6 years ago
Grinning Face Exactly what I needed
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