In the calculation above, we used the fuel value of graphite as a model for coal. Graphite is 100% carbon. However, the fuel value of coal varies from 15 kJ/gram to 32 kJ/gram. (2pts) Why is the fuel value of coal different from carbon (graphite)?
Why does the fuel value of coal have a range?

Will give ! what are the advantages and disadvantages of nuclear power? check all that apply. one advantage of nuclear energy is that it does not produce carbon dioxide emissions. storage of nuclear waste is a short-term problem associated with nuclear energy. the problem with uranium mining is that a large quantity of uranium must be extracted to meet energy needs because the energy release from uranium fission is so low. safe operation of a nuclear power plant can be jeopardized by a human mistake.