Does the following reaction absorb or release energy? (1) Br(g) + e^- rightarrow

Question

Does the following reaction absorb or release energy? (1) Br(g) + e^- rightarrow Br^-(g) release absorb Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? yes no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (1): kJ/mol Does the following reaction absorb or release energy? (2) Br(g) rightarrow Br^+(g) + e^- release absorb Can't be decided v/ith the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (2) using only the data above? yes no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2): kJ/mol

Explanation / Answer

1. Br + e- -------> Br- heat energy is released

The amount of energy is released when an electron added to neutral atom is called electron affinity.

   Yes

2. Br + e- -------> Br-    EA = -324.6Kj/mole

2. Br --------> Br+ + e-   IP = 1139.9Kj/mole

heat energy is absorb

yes

. Br --------> Br+ + e-   IP = 1139.9Kj/mole

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