Physics

Imagine that your car is powered by a fusion engine in which the following reaction occurs.
3*deuterium--->helium + hydrogen + neutron

The masses are (2.0141 u), (4.0026 u), (1.0078 u) and (1.0087 u). The engine uses 8.1 10-6 kg of deuterium fuel. If one gallon of gasoline produces 2.1 109 J of energy, how many gallons of gasoline would have to be burned to equal the energy released by all the deuterium fuel?

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