654. In one act of fission of the uranium 235U nucleus, an energy of 200 MeV is released. Determine: 1) the energy released during the decay of all nuclei of this uranium isotope with a mass of m = 1 kg; 2) the mass of coal with a specific heat of combustion q = 29.3 MJ / kg, equivalent in thermal ratio to 1 kg of uranium 235U.