A certain nuclear reaction has Q=−5.3MeV. Which statement about the reaction is correct?
(a) It releases 5.3MeV of energy and can occur spontaneously.
(b) The reaction is impossible even if kinetic energy is supplied, because negative Q violates energy conservation.
(c) It absorbs 5.3MeV of energy; hence an external supply of at least this much kinetic energy is required for the reaction to proceed.
(d) It requires only 2.65MeV of external energy because the remaining energy is provided by the products’ kinetic energy.