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In a thermo nuclear reaction .001kg of hydrogen is converted into .0.00099kg of helium . If the efficiency is 50%,the electrical energy generated in KWH is __

In a thermo nuclear reaction .001kg of hydrogen is converted into .0.00099kg of helium . If the efficiency is 50%,the electrical energy generated in KWH is __

Grade:12th pass

1 Answers

Arun
25763 Points
3 years ago

Member since Apr 28 2014

Mass of Hydrogen = 1g
Mass of helium = 0.993 g
Δm = 1 - 0.993 = 0.007g =  0.007 X 10-3 kg
According to Einstein mass energy relation
E = ΔmC2
=   0.007 X 10-3 X (3 X 108)2
= 63 X 1010 J

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