The ß- decay of phosphorus {P 15(subscript) 32(superscript)} (having atomic mass = 31.973 907 u) generates a daughter nucleus which is sulphur {S 16(subscript) 32(superscript)} (atomic mass = 31.972 070 u), a ß- particle and an antineutrino. The kinetic energy of ß- particle is 1.0 MeV. Determine the maximum possible energy (in MeV) which the antineutrino could carry away.