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Question
In a nuclear fusion reaction, 2 g of hydrogen is converted into 1.985 g of helium. What is the energy released?
1. $4.5\times 10^{3}\textrm{ J}$
2. $4.5\times 10^{6}\textrm{ J}$
3. $1.35\times 10^{12}\textrm{ J}$
4. $1.35\times 10^{15}\textrm{ J}$
Solution Video