A Summary of the Nuclear Reactions That Power Our Sun $4 \mathrm { p } \rightarrow 4 \mathrm { He } + 2 \mathrm { e } ^ { - }$

question 44

Multiple Choice

A summary of the nuclear reactions that power our sun is $4 \mathrm { p } \rightarrow 4 \mathrm { He } + 2 \mathrm { e } ^ { - }$ , with masses of $938.272$ $\mathrm { MeV } / \mathrm { c } ^ { 2 }$ for a proton, $3727.38 \mathrm { MeV } / \mathrm { c } ^ { 2 }$ for the helium nucleus, and $0.511 \mathrm { MeV } / \mathrm { c } ^ { 2 }$ for each electron. How much energy is released by each of these reactions?

• A) \(28.3 \mathrm { MeV }\)
• B) \(2790.13 \mathrm { MeV }\)
• C) \(279.01 \mathrm { MeV }\)
• D) \(24.69 \mathrm { MeV }\)

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Definitions:

Drug Molecule

A small chemical compound that has a therapeutic effect when administered to treat or prevent a disease.

Curare

A toxin derived from plants found in South America, used historically as a paralyzing agent on arrows for hunting.

Paralyzing Poison

A toxic substance that can cause immobilization by affecting the nervous system or muscular function.

ACh Antagonist

A compound that blocks the action of acetylcholine, a neurotransmitter involved in muscle action, heart rate, and other functions.