I found this question a bit confusing. Anyone who can help out with these answers.Your help is appreciated
In a main sequence star such as our Sun, a fusion reaction is ongoing that releases energy: the
pp chain, in which four hydrogen-1 nuclei (single protons) become one helium nucleus (alpha
particle). The resulting mass is less than the initial mass: this ‘mass loss’ is the source of Sun’s
energy which can be calculated from the equation: E= m*c
2 , where E is the energy released;
m is the ‘missing’ mass; and c is the speed of light, 3.0 * 105 km/s. The mass of one proton is
1.008 a.m.u (atoms mass unit: the mass of a carbon-12 nucleus is defined to be 12 a..m.u). The
mass of a helium-4 nucleus is 4.003 a.m.u: there is a deficit. 1 a.m.u = 1.66*10-27 kg and it is
estimated that 3.6 ×1038 protons are converted into helium nuclei every second.
A. What is the energy released in a single reaction where four protons ->
one He nucleus?
B. What is the power output of Sun? (3 marks)
Power = (number of reactions per second) X (energy released per reaction)