Question #199737

How many scientific years can a 6.6 W LED lamp shine with 0.781 kg deuterium if 26.2% of the released energy in each reaction becomes electrical energy? Assume here that the neutron mass is mn = 1.01 u instead of the table value.


1
Expert's answer
2021-05-28T07:16:19-0400

6.6(31556952)t=(0.262)(0.781)2(2.0141.661027)(3.271.61013)t=76875 years6.6(31556952)t\\=(0.262)\frac{(0.781)}{2(2.014\cdot1.66\cdot10^{-27})}(3.27\cdot1.6\cdot10^{-13})\\t=76875\ years


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