What type of reaction is shown in this thermochemical equation? A + B + heat → C + D

endothermic

combination

decomposition

exothermic

The reaction, as what is depicted in the thermonuclear equation is one of the best example of an endothermic reaction. In addition, the endothermic process revolves around the idea that the system can also absorb the energy from its surroundings, in contrast to the idea of releasing its energy to its environment.