question_answer 30)

Calculate and compare the energy released by (a) fusion of 1.0 kg of hydrogen deep within the sun and (b) the fission of 1.0 kg of  in a fission reactor.  

Answer:

(a) In sun fusion takes place according to the equation 4 hydrogen atoms combine to produce 26 MeV of energy. Now 1 g of hydrogen contains nuclei 1000 g of hydrogen contains nuclei Energy released (b) Fission of one nucleus gives energy = 200 MeV. Now 235 g of has no. of atoms 1 kg (1000 g) of has atomsatoms Total energy released