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1 g of hydrogen is converted into 0.993 g of helium in a thermonuclear reaction. The energy released is

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a
63 x 107 J
b
63 x 1010 J
c
63 x 1014J
d
63 x 1020J

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detailed solution

Correct option is B

Δm=1−0.993=0.007gm∴E=Δmc2=0.007×10−33×1082                               =63×1010J


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What is the total energy emitted for given fission reaction

 01n+92235U92236U4098Zr+52136Te+201n

The daughter nuclei are unstable therefore they decay into stable end products M 4298o and X 54136e by successive emission of β-particles. Let mass of   01n=1.0087 amu, mass of  92235U=236.0526 amu, mass of  54136Xe=135.9170 amu, mass of M 4298o = 97.9054 


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