In a certain fusion event the total mass of the reactant nuclei is while that of the…

PHYSICS · Subjective · CBSE · Physics · Nuclei · Nuclei

Problem

In a certain fusion event the total mass of the reactant nuclei is

4.02820\,\text{u}

while that of the product nuclei is

4.02469\,\text{u}

. Explain in one sentence whether the reaction is exothermic or endothermic, giving a brief reason based on the given masses.