CBSE Class 12-science Answered
claculate the energy equivalent of 1 g of substance.
Asked by prerna.naga | 09 May, 2019, 08:51: AM
Expert Answer
m = 1 g = 10-3 kg
and speed of light, c = 3 x 108 m/s
Thus, according to Eistein's mass-energy relation,
E = mc2
E = 10-3 x (3 x 108)2
E = 9 x 1013 J
Thus, energy equivalent to substance of mass 1 g is 9 x 1013 J
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