The protonāproton cycle responsible for the Sun's 3.84 ā 10Ā²ā¶ W power output yields about 26.7 MeV of energy for every four protons that are fused into a helium nucleus. Determine the energy in joules released during each protonāproton cycle fusion reaction, the number of protonāproton cycles occurring per second in the Sun, and the change in the Sun's mass each second due to this energy release.
(a) the energy in joules released during each protonāproton cycle fusion reaction