Which of the following processes is exothermic? A)the second ionization energy of Mg B)the sublimation of Li C)the breaking the bond of I₂ D)the formation of NaBr from its constituent elements in their standard state E)None of the above are exothermic.

Question

Quizplus · Accepted Answer

The formation of NaBr from its constituent elements in their standard state releases energy, making it an exothermic process. The second ionization energy of Mg and the sublimation of Li both require energy input and are therefore endothermic processes. The breaking of the bond in I₂ is neither exothermic nor endothermic because it is not a recognized chemical compound or element. Therefore, the answer is D.

Which of the Following Processes Is Exothermic